63 – Europium, Eu
63 – Europium, Eu
63 – Europium, Eu
63 – Europium, Eu
63 – Europium, Eu
Europium is a moderately hard, silvery metal which readily oxidizes in air and water. There is no significant biological role and is relatively non-toxic. Most applications of europium exploit the phosphorescence of europium compounds.
Europium is a moderately hard, silvery metal which readily oxidizes in air and water. There is no significant biological role and is relatively non-toxic. Most applications of europium exploit the phosphorescence of europium compounds.
Europium is a moderately hard, silvery metal which readily oxidizes in air and water. There is no significant biological role and is relatively non-toxic. Most applications of europium exploit the phosphorescence of europium compounds.
Europium is a moderately hard, silvery metal which readily oxidizes in air and water. There is no significant biological role and is relatively non-toxic. Most applications of europium exploit the phosphorescence of europium compounds.
Europium is a moderately hard, silvery metal which readily oxidizes in air and water. There is no significant biological role and is relatively non-toxic. Most applications of europium exploit the phosphorescence of europium compounds.
1901 by Eugene Demarcay, France.
1901 by Eugene Demarcay, France.
1901 by Eugene Demarcay, France.
1901 by Eugene Demarcay, France.
1901 by Eugene Demarcay, France.
DISCOVERY
DISCOVERY
DISCOVERY
DISCOVERY
DISCOVERY
From the name of Europe.
From the name of Europe.
From the name of Europe.
From the name of Europe.
From the name of Europe.
ETYMOLOGY
ETYMOLOGY
ETYMOLOGY
ETYMOLOGY
ETYMOLOGY
Europium
Europium
Europium
Europium
Europium
Element
Element
Element
Element
Element
Eu
Eu
Eu
Eu
Eu
Symbol
Symbol
Symbol
Symbol
Symbol
63
63
63
63
63
Atomic Number
Atomic Number
Atomic Number
Atomic Number
Atomic Number
Lanthanide
Lanthanide
Lanthanide
Lanthanide
Lanthanide
Classification
Classification
Classification
Classification
Classification
7440-53-1
7440-53-1
7440-53-1
7440-53-1
7440-53-1
CAS Number
CAS Number
CAS Number
CAS Number
CAS Number
Silver
Silver
Silver
Silver
Silver
Elemental Colour
Elemental Colour
Elemental Colour
Elemental Colour
Elemental Colour
-
-
-
-
-
Refractive Index
Refractive Index
Refractive Index
Refractive Index
Refractive Index
0.150
0.150
0.150
0.150
0.150
Poisson Ratio
Poisson Ratio
Poisson Ratio
Poisson Ratio
Poisson Ratio
28.979 cm3
28.979 cm3
28.979 cm3
28.979 cm3
28.979 cm3
Molar Volume
Molar Volume
Molar Volume
Molar Volume
Molar Volume
-
-
-
-
-
Brinell Hardness
Brinell Hardness
Brinell Hardness
Brinell Hardness
Brinell Hardness
3.00
3.00
3.00
3.00
3.00
Mohs Hardness
Mohs Hardness
Mohs Hardness
Mohs Hardness
Mohs Hardness
167.00M Pa, 1.648'2k Atm
167.00M Pa, 1.648'2k Atm
167.00M Pa, 1.648'2k Atm
167.00M Pa, 1.648'2k Atm
1.648'2k Atm
Vickers Hardness
Vickers Hardness
Vickers Hardness
Vickers Hardness
Vickers Hardness
-
-
-
-
-
Speed of Sound
Speed of Sound
Speed of Sound
Speed of Sound
Speed of Sound
8.30G Pa, 81.914'6k Atm
8.30G Pa, 81.914'6k Atm
8.30G Pa, 81.914'6k Atm
8.30G Pa, 81.914'6k Atm
81.914'6k Atm
Bulk Modulus
Bulk Modulus
Bulk Modulus
Bulk Modulus
Bulk Modulus
7.90G Pa, 77.966'9k Atm
7.90G Pa, 77.966'9k Atm
7.90G Pa, 77.966'9k Atm
7.90G Pa, 77.966'9k Atm
77.966'9k Atm
Shear Modulus
Shear Modulus
Shear Modulus
Shear Modulus
Shear Modulus
18.00G Pa, 177.646'2k Atm
18.00G Pa, 177.646'2k Atm
18.00G Pa, 177.646'2k Atm
18.00G Pa, 177.646'2k Atm
177.646'2k Atm
Young Modulus
Young Modulus
Young Modulus
Young Modulus
Young Modulus
Allotropes
Allotropes
Allotropes
Allotropes
Allotropes
NONE
NONE
NONE
NONE
NONE
1,095.15 K, 822.00 °C
1,095.15 K, 822.00 °C
1,095.15 K, 822.00 °C
1,095.15 K, 822.00 °C
822.00 °C
Melting Point
Melting Point
Melting Point
Melting Point
Melting Point
1,800.15 K, 1,527.00 °C
1,800.15 K, 1,527.00 °C
1,800.15 K, 1,527.00 °C
1,800.15 K, 1,527.00 °C
1,527.00 °C
Boiling Point
Boiling Point
Boiling Point
Boiling Point
Boiling Point
-
-
-
-
-
Automatic Ignition
Automatic Ignition
Automatic Ignition
Automatic Ignition
Automatic Ignition
-
-
-
-
-
Flashpoint
Flashpoint
Flashpoint
Flashpoint
Flashpoint
-
-
-
-
-
Critical Temperature
Critical Temperature
Critical Temperature
Critical Temperature
Critical Temperature
-
-
-
-
-
Critical Pressure
Critical Pressure
Critical Pressure
Critical Pressure
Critical Pressure
14.000'000 W/(m K)
14.000'000 W/(m K)
14.000'000 W/(m K)
14.000'000 W/(m K)
14.000'000 W/(m K)
Thermal Conductivity
Thermal Conductivity
Thermal Conductivity
Thermal Conductivity
Thermal Conductivity
0.000'035'0 K-1
0.000'035'0 K-1
0.000'035'0 K-1
0.000'035'0 K-1
0.000'035'0 K-1
Thermal Expansion
Thermal Expansion
Thermal Expansion
Thermal Expansion
Thermal Expansion
182.00 J/(kg K)
182.00 J/(kg K)
182.00 J/(kg K)
182.00 J/(kg K)
182.00 J/(kg K)
Specific Heat
Specific Heat
Specific Heat
Specific Heat
Specific Heat
9.200 kJ/mol
9.200 kJ/mol
9.200 kJ/mol
9.200 kJ/mol
9.200 kJ/mol
Heat Fusion
Heat Fusion
Heat Fusion
Heat Fusion
Heat Fusion
175.000 kJ/mol
175.000 kJ/mol
175.000 kJ/mol
175.000 kJ/mol
175.000 kJ/mol
Heat Vaporisation
Heat Vaporisation
Heat Vaporisation
Heat Vaporisation
Heat Vaporisation
-
-
-
-
-
Heat Combustion
Heat Combustion
Heat Combustion
Heat Combustion
Heat Combustion
-
-
-
-
-
Curie Point
Curie Point
Curie Point
Curie Point
Curie Point
90.50 K, -182.65 °C
90.50 K, -182.65 °C
90.50 K, -182.65 °C
90.50 K, -182.65 °C
-182.65 °C
Neel Point
Neel Point
Neel Point
Neel Point
Neel Point
-
-
-
-
-
Adiabatic Index
Adiabatic Index
Adiabatic Index
Adiabatic Index
Adiabatic Index
Solid
Solid
Solid
Solid
Solid
Phase
Phase
Phase
Phase
Phase
Conductor
Conductor
Conductor
Conductor
Conductor
Electrical Type
Electrical Type
Electrical Type
Electrical Type
Electrical Type
1.10M S/m
1.10M S/m
1.10M S/m
1.10M S/m
1.10M S/m
Conductivity
Conductivity
Conductivity
Conductivity
Conductivity
900.00n Ω.m
900.00n Ω.m
900.00n Ω.m
900.00n Ω.m
900.00n Ω.m
Resistivity
Resistivity
Resistivity
Resistivity
Resistivity
-
-
-
-
-
Superconducting Point
Superconducting Point
Superconducting Point
Superconducting Point
Superconducting Point
Paramagnetic
Paramagnetic
Paramagnetic
Paramagnetic
Paramagnetic
Magnetic Type
Magnetic Type
Magnetic Type
Magnetic Type
Magnetic Type
0.000'000'276'0
0.000'000'276'0
0.000'000'276'0
0.000'000'276'0
0.000'000'276'0
Mass Susceptibility
Mass Susceptibility
Mass Susceptibility
Mass Susceptibility
Mass Susceptibility
0.000'000'041'942'00
0.000'000'041'942'00
0.000'000'041'942'00
0.000'000'041'942'00
0.000'000'041'942'00
Molar Susceptibility
Molar Susceptibility
Molar Susceptibility
Molar Susceptibility
Molar Susceptibility
0.001'447'300'00
0.001'447'300'00
0.001'447'300'00
0.001'447'300'00
0.001'447'300'00
Volume Susceptibility
Volume Susceptibility
Volume Susceptibility
Volume Susceptibility
Volume Susceptibility
Material Composition
Material Composition
Material Composition
Material Composition
Material Composition
0.000'000'1 %
0.000'000'1 %
0.000'000'1 %
0.000'000'1 %
0.000'000'1 %
Universe
Universe
Universe
Universe
Universe
0.000'002'9 %
0.000'002'9 %
0.000'002'9 %
0.000'002'9 %
0.000'002'9 %
Meteorites
Meteorites
Meteorites
Meteorites
Meteorites
0.000'000'05 %
0.000'000'05 %
0.000'000'05 %
0.000'000'05 %
0.000'000'05 %
Sun
Sun
Sun
Sun
Sun
0.000'18 %
0.000'18 %
0.000'18 %
0.000'18 %
0.000'18 %
Earth Crust
Earth Crust
Earth Crust
Earth Crust
Earth Crust
0.000'000'000'01 %
0.000'000'000'01 %
0.000'000'000'01 %
0.000'000'000'01 %
0.000'000'000'01 %
Oceans
Oceans
Oceans
Oceans
Oceans
-
-
-
-
-
Humans
Humans
Humans
Humans
Humans
151.964'370'5
151.964'370'5
151.964'370'5
151.964'370'5
151.964'370'5
Atomic Weight
Atomic Weight
Atomic Weight
Atomic Weight
Atomic Weight
231 pm
231 pm
231 pm
231 pm
231 pm
Atomic Radius
Atomic Radius
Atomic Radius
Atomic Radius
Atomic Radius
168 pm
168 pm
168 pm
168 pm
168 pm
Covalent Radius Single Bond
Covalent Radius Single Bond
Covalent Radius Single Bond
Covalent Radius Single Bond
Covalent Radius Single Bond
134 pm
134 pm
134 pm
134 pm
134 pm
Covalent Radius Double Bond
Covalent Radius Double Bond
Covalent Radius Double Bond
Covalent Radius Double Bond
Covalent Radius Double Bond
-
-
-
-
-
Covalent Radius Triple Bond
Covalent Radius Triple Bond
Covalent Radius Triple Bond
Covalent Radius Triple Bond
Covalent Radius Triple Bond
233 pm
233 pm
233 pm
233 pm
233 pm
Van der Waals Radius
Van der Waals Radius
Van der Waals Radius
Van der Waals Radius
Van der Waals Radius
[Xe]6s24f7
[Xe]6s24f7
[Xe]6s24f7
[Xe]6s24f7
[Xe]6s24f7
Electron Configuration
Electron Configuration
Electron Configuration
Electron Configuration
Electron Configuration
Cubic, Body-centred
Cubic, Body-centred
Cubic, Body-centred
Cubic, Body-centred
Cubic, Body-centred
Crystal Structure
Crystal Structure
Crystal Structure
Crystal Structure
Crystal Structure
5.244'00 g/cm3
5.244'00 g/cm3
5.244'00 g/cm3
5.244'00 g/cm3
5.244'00 g/cm3
Density as Solid
Density as Solid
Density as Solid
Density as Solid
Density as Solid
5.130'00 g/cm3
5.130'00 g/cm3
5.130'00 g/cm3
5.130'00 g/cm3
5.130'00 g/cm3
Density as Liquid
Density as Liquid
Density as Liquid
Density as Liquid
Density as Liquid
-
-
-
-
-
Density as Gas
Density as Gas
Density as Gas
Density as Gas
Density as Gas
lm_3m
lm_3m
lm_3m
lm_3m
lm_3m
Space Group Name
Space Group Name
Space Group Name
Space Group Name
Space Group Name
229
229
229
229
229
Space Group Number
Space Group Number
Space Group Number
Space Group Number
Space Group Number
π/2, π/2 & π/2
π/2, π/2 & π/2
π/2, π/2 & π/2
π/2, π/2 & π/2
π/2, π/2 & π/2
Lattice Angles
Lattice Angles
Lattice Angles
Lattice Angles
Lattice Angles
458.1, 458.1 & 458.1 pm
458.1, 458.1 & 458.1 pm
458.1, 458.1 & 458.1 pm
458.1, 458.1 & 458.1 pm
458.1, 458.1 & 458.1 pm
Lattice Constants
Lattice Constants
Lattice Constants
Lattice Constants
Lattice Constants
3
3
3
3
3
Valence
Valence
Valence
Valence
Valence
-
-
-
-
-
Electronegativity
Electronegativity
Electronegativity
Electronegativity
Electronegativity
11.19 kJ/mol
11.19 kJ/mol
11.19 kJ/mol
11.19 kJ/mol
11.19 kJ/mol
Electron Affinity
Electron Affinity
Electron Affinity
Electron Affinity
Electron Affinity
Ionisation Energy
Ionisation Energy
Ionisation Energy
Ionisation Energy
Ionisation Energy
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Stable
Stable
Stable
Stable
Stable
Half Life
Half Life
Half Life
Half Life
Half Life
Stable
Stable
Stable
Stable
Stable
Lifetime
Lifetime
Lifetime
Lifetime
Lifetime
4f7 = 4, 3, +3, +1/2
4f7 = 4, 3, +3, +1/2
4f7 = 4, 3, +3, +1/2
4f7 = 4, 3, +3, +1/2
4f7 = 4, 3, +3, +1/2
Quantum Numbers
Quantum Numbers
Quantum Numbers
Quantum Numbers
Quantum Numbers
9.200'00 b σs
9.200'00 b σs
9.200'00 b σs
9.200'00 b σs
9.200'00 b σs
Neutron Cross Section
Neutron Cross Section
Neutron Cross Section
Neutron Cross Section
Neutron Cross Section
4,530.000'00 b σa
4,530.000'00 b σa
4,530.000'00 b σa
4,530.000'00 b σa
4,530.000'00 b σa
Neutron Mass Absorption
Neutron Mass Absorption
Neutron Mass Absorption
Neutron Mass Absorption
Neutron Mass Absorption
Stable Isotopes
Stable Isotopes
Stable Isotopes
Stable Isotopes
Stable Isotopes
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Unstable Isotopes
Unstable Isotopes
Unstable Isotopes
Unstable Isotopes
Unstable Isotopes
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Isotopes Overview
Isotopes Overview
Isotopes Overview
Isotopes Overview
Isotopes Overview
| Isotope | Stability | Symbol | Type | Protons | Neutrons | Spin | Parity | Mass | Abundance | Mass Measure | Mass Excess | Binding Energy | Dipole Moment | Quadrupole Moment | Halflife in Years | Halflife in Seconds | A01 Decay Probability | A01 Decay Mode | A01 Decay Energy | A01 Decay Daughter | A01 Decay Link | A02 Decay Probability | A02 Decay Mode | A02 Decay Energy | A02 Decay Daughter | A02 Decay Link | A03 Decay Probability | A03 Decay Mode | A03 Decay Energy | A03 Decay Daughter | A03 Decay Link | A04 Decay Probability | A04 Decay Mode | A04 Decay Energy | A04 Decay Daughter | A04 Decay Link | A05 Decay Probability | A05 Decay Mode | A05 Decay Energy | A05 Decay Daughter | A05 Decay Link | A06 Decay Probability | A06 Decay Mode | A06 Decay Energy | A06 Decay Daughter | A06 Decay Link | Y01 Decay Product Yield | Y01 Decay Product Nuclide | Y02 Decay Product Yield | Y02 Decay Product Nuclide | Y03 Decay Product Yield | Y03 Decay Product Nuclide | Y04 Decay Product Yield | Y04 Decay Product Nuclide | Y05 Decay Product Yield | Y05 Decay Product Nuclide | Y06 Decay Product Yield | Y06 Decay Product Nuclide | Y07 Decay Product Yield | Y07 Decay Product Nuclide | Y08 Decay Product Yield | Y08 Decay Product Nuclide | Y09 Decay Product Yield | Y09 Decay Product Nuclide | Y10 Decay Product Yield | Y10 Decay Product Nuclide | Y11 Decay Product Yield | Y11 Decay Product Nuclide | Y12 Decay Product Yield | Y12 Decay Product Nuclide | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Isotope_063_eu_130_u | Unstable | ¹³⁰Eu | Fermion | 63 | p | 67 | n | 2 | 1 | 129.963'569'000'0 | u | ~ 0 | % | ~ 0 | -33.936'000'000'0 | MeV | 7.953'000'000'0 | MeV | - | - | 3.49E-11 | year | 1.100 | milli-seconds ( x⁻³ ) | 99.000'000 | % | p | 1,028.000 | keV | ¹²⁹Sm | ¹³⁰Eu > [ 99 % , p , 1,028.0 keV ] > ¹²⁹Sm | β+ | 12,623.000 | keV | ¹³⁰Sm | ¹³⁰Eu > [ , β+ , 12,623.0 keV ] > ¹³⁰Sm | ? | % | ¹²⁹Xe | ? | % | ¹²⁸Xe | ? | % | ¹³⁰Xe | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_131_u | Unstable | ¹³¹Eu | Boson | 63 | p | 68 | n | 3/2 | 1 | 130.957'753'000'0 | u | ~ 0 | % | ~ 0 | -39.353'000'000'0 | MeV | 7.995'000'000'0 | MeV | - | - | 5.64E-10 | year | 17.800 | milli-seconds ( x⁻³ ) | 88.000'000 | % | p | 932.200 | keV | ¹³⁰Sm | ¹³¹Eu > [ 88 % , p , 932.2 keV ] > ¹³⁰Sm | β+ | 9,824.000 | keV | ¹³¹Sm | ¹³¹Eu > [ , β+ , 9,824.0 keV ] > ¹³¹Sm | 12.000'000 | % | ¹³¹Xe | ? | % | ¹²⁹Xe | ? | % | ¹³⁰Xe | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_132_u | Unstable | ¹³²Eu | Fermion | 63 | p | 69 | n | ? | 0 | 131.954'370'000'0 | u | ~ 0 | % | ~ 0 | -42.504'000'000'0 | MeV | 8.020'000'000'0 | MeV | - | - | 3.17E-9 | year | 100.000 | milli-seconds ( x⁻³ ) | 100.000'000 | % | β+ | 11,721.000 | keV | ¹³²Sm | ¹³²Eu > [ 100 % , β+ , 11,721.0 keV ] > ¹³²Sm | p | 405.000 | keV | ¹³¹Sm | ¹³²Eu > [ , p , 405.0 keV ] > ¹³¹Sm | 0.000'050 | % | ¹³¹Xe | ? | % | ¹³²Xe | ? | % | ¹³⁰Xe | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_133_u | Unstable | ¹³³Eu | Boson | 63 | p | 70 | n | 11/2 | -1 | 132.949'240'000'0 | u | ~ 0 | % | ~ 0 | -47.283'000'000'0 | MeV | 8.056'000'000'0 | MeV | - | - | 6.34E-9 | year | 200.000 | milli-seconds ( x⁻³ ) | ? | % | β+ | 8,824.000 | keV | ¹³³Sm | ¹³³Eu > [ ? % , β+ , 8,824.0 keV ] > ¹³³Sm | ? | % | ¹³³Cs | ? | % | ¹³²Xe | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_134_u | Unstable | ¹³⁴Eu | Fermion | 63 | p | 71 | n | ? | 0 | 133.946'510'000'0 | u | ~ 0 | % | ~ 0 | -49.826'000'000'0 | MeV | 8.075'000'000'0 | MeV | - | - | 1.58E-8 | year | 500.000 | milli-seconds ( x⁻³ ) | 100.000'000 | % | β+ | 10,659.000 | keV | ¹³⁴Sm | ¹³⁴Eu > [ 100 % , β+ , 10,659.0 keV ] > ¹³⁴Sm | β+p | ? | keV | ¹³³Pm | ¹³⁴Eu > [ , β+p , ? keV ] > ¹³³Pm | 100.000'000 | % | ¹³⁴Ba | ? | % | ¹³³Cs | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_135_u | Unstable | ¹³⁵Eu | Boson | 63 | p | 72 | n | 11/2 | -1 | 134.941'820'000'0 | u | ~ 0 | % | ~ 0 | -54.194'000'000'0 | MeV | 8.108'000'000'0 | MeV | - | - | 4.75E-8 | year | 1.500 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 7,641.000 | keV | ¹³⁵Sm | ¹³⁵Eu > [ 100 % , β+ , 7,641.0 keV ] > ¹³⁵Sm | β+p | ? | keV | ¹³⁴Pm | ¹³⁵Eu > [ , β+p , ? keV ] > ¹³⁴Pm | 100.000'000 | % | ¹³⁵Ba | 0.020'000 | % | ¹³⁴Ba | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_136_u | Unstable | ¹³⁶Eu | Fermion | 63 | p | 73 | n | 7 | 1 | 135.939'600'000'0 | u | ~ 0 | % | ~ 0 | -56.262'000'000'0 | MeV | 8.123'000'000'0 | MeV | - | - | 1.05E-7 | year | 3.300 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 9,527.000 | keV | ¹³⁶Sm | ¹³⁶Eu > [ 100 % , β+ , 9,527.0 keV ] > ¹³⁶Sm | β+p | ? | keV | ¹³⁵Pm | ¹³⁶Eu > [ , β+p , ? keV ] > ¹³⁵Pm | 0.090'000 | % | ¹³⁵Ba | ? | % | ¹³⁶Ba | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_137_u | Unstable | ¹³⁷Eu | Boson | 63 | p | 74 | n | 11/2 | -1 | 136.935'570'000'0 | u | ~ 0 | % | ~ 0 | -60.016'000'000'0 | MeV | 8.150'000'000'0 | MeV | - | - | 2.66E-7 | year | 8.400 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 9,687.000 | keV | ¹³⁷Sm | ¹³⁷Eu > [ 100 % , β+ , 9,687.0 keV ] > ¹³⁷Sm | ? | % | ¹³⁷Ba | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_138_u | Unstable | ¹³⁸Eu | Fermion | 63 | p | 75 | n | 6 | -1 | 137.933'709'000'0 | u | ~ 0 | % | ~ 0 | -61.749'669'000'0 | MeV | 8.161'620'000'0 | MeV | 5.200'000'000'0 | nm | - | 3.83E-7 | year | 12.100 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 8,725.900 | keV | ¹³⁸Sm | ¹³⁸Eu > [ 100 % , β+ , 8,725.9 keV ] > ¹³⁸Sm | ? | % | ¹³⁸Ba | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_139_u | Unstable | ¹³⁹Eu | Boson | 63 | p | 76 | n | 11/2 | -1 | 138.929'792'280'0 | u | ~ 0 | % | ~ 0 | -65.398'070'000'0 | MeV | 8.187'218'000'0 | MeV | - | - | 5.67E-7 | year | 17.900 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 5,960.000 | keV | ¹³⁹Sm | ¹³⁹Eu > [ 100 % , β+ , 5,960.0 keV ] > ¹³⁹Sm | 100.000'000 | % | ¹³⁹La | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_140_u | Unstable | ¹⁴⁰Eu | Fermion | 63 | p | 77 | n | 1 | 1 | 139.928'087'607'0 | u | ~ 0 | % | ~ 0 | -66.985'963'000'0 | MeV | 8.197'732'000'0 | MeV | 1.365'000'000'0 | nm | 0.310'000'000'0 | b | 4.78E-8 | year | 1.510 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 7,447.800 | keV | ¹⁴⁰Sm | ¹⁴⁰Eu > [ 100 % , β+ , 7,447.8 keV ] > ¹⁴⁰Sm | 100.000'000 | % | ¹⁴⁰Ce | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_141_u | Unstable | ¹⁴¹Eu | Boson | 63 | p | 78 | n | 5/2 | 1 | 140.924'930'720'0 | u | ~ 0 | % | ~ 0 | -69.926'584'000'0 | MeV | 8.217'691'000'0 | MeV | 3.494'000'000'0 | nm | 0.850'000'000'0 | b | 1.29E-6 | year | 40.700 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 4,989.900 | keV | ¹⁴¹Sm | ¹⁴¹Eu > [ 100 % , β+ , 4,989.9 keV ] > ¹⁴¹Sm | 100.000'000 | % | ¹⁴¹Pr | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_142_u | Unstable | ¹⁴²Eu | Fermion | 63 | p | 79 | n | 1 | 1 | 141.923'434'945'0 | u | ~ 0 | % | ~ 0 | -71.319'889'000'0 | MeV | 8.226'472'000'0 | MeV | 1.536'000'000'0 | nm | 0.120'000'000'0 | b | 7.48E-8 | year | 2.360 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 6,650.800 | keV | ¹⁴²Sm | ¹⁴²Eu > [ 100 % , β+ , 6,650.8 keV ] > ¹⁴²Sm | 100.000'000 | % | ¹⁴²Nd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_143_u | Unstable | ¹⁴³Eu | Boson | 63 | p | 80 | n | 5/2 | 1 | 142.920'297'509'0 | u | ~ 0 | % | ~ 0 | -74.242'392'000'0 | MeV | 8.245'824'000'0 | MeV | 3.673'000'000'0 | nm | 0.510'000'000'0 | b | 4.91E-6 | year | 154.980 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 4,258.600 | keV | ¹⁴³Sm | ¹⁴³Eu > [ 100 % , β+ , 4,258.6 keV ] > ¹⁴³Sm | 100.000'006 | % | ¹⁴³Nd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_144_u | Unstable | ¹⁴⁴Eu | Fermion | 63 | p | 81 | n | 1 | 1 | 143.918'816'823'0 | u | ~ 0 | % | ~ 0 | -75.621'643'000'0 | MeV | 8.254'191'000'0 | MeV | 1.893'000'000'0 | nm | 0.100'000'000'0 | b | 3.23E-7 | year | 10.200 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 5,328.100 | keV | ¹⁴⁴Sm | ¹⁴⁴Eu > [ 100 % , β+ , 5,328.1 keV ] > ¹⁴⁴Sm | ? | % | ¹⁴⁰Ce | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_145_u | Unstable | ¹⁴⁵Eu | Boson | 63 | p | 82 | n | 5/2 | 1 | 144.916'265'237'0 | u | ~ 0 | % | ~ 0 | -77.998'429'000'0 | MeV | 8.269'321'000'0 | MeV | 3.993'3.993'3.993'3.993 | nm | 0.290'000'000'0 | b | 1.62E-2 | year | 512.006 | kilo-seconds ( x³ ) | 100.000'000 | % | β+ | 1,637.110 | keV | ¹⁴⁵Sm | ¹⁴⁵Eu > [ 100 % , β+ , 1,637.11 keV ] > ¹⁴⁵Sm | 100.000'000 | % | ¹⁴⁵Nd | 0.000'000 | % | ¹⁴¹Pr | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_146_u | Unstable | ¹⁴⁶Eu | Fermion | 63 | p | 83 | n | 4 | -1 | 145.917'205'817'0 | u | ~ 0 | % | ~ 0 | -77.122'285'000'0 | MeV | 8.261'964'000'0 | MeV | 1.425'000'000'0 | nm | -0.180'000'000'0 | b | 1.26E-2 | year | 397.958 | kilo-seconds ( x³ ) | 100.000'000 | % | β+ | 2,857.400 | keV | ¹⁴⁶Sm | ¹⁴⁶Eu > [ 100 % , β+ , 2,857.4 keV ] > ¹⁴⁶Sm | 100.000'000 | % | ¹⁴⁵Nd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_147_u | Unstable | ¹⁴⁷Eu | Boson | 63 | p | 84 | n | 5/2 | 1 | 146.916'746'111'0 | u | ~ 0 | % | ~ 0 | -77.550'499'000'0 | MeV | 8.263'580'000'0 | MeV | 3.724'000'000'0 | nm | 0.550'000'000'0 | b | 6.59E-2 | year | 2.080 | mega-seconds ( x⁶ ) | 100.000'000 | % | β+ | 699.380 | keV | ¹⁴⁷Sm | ¹⁴⁷Eu > [ 100 % , β+ , 699.38 keV ] > ¹⁴⁷Sm | α | 2,990.320 | keV | ¹⁴³Pm | ¹⁴⁷Eu > [ , α , 2,990.32 keV ] > ¹⁴³Pm | 100.002'200 | % | ¹⁴³Nd | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_148_u | Unstable | ¹⁴⁸Eu | Fermion | 63 | p | 85 | n | 5 | -1 | 147.918'085'895'0 | u | ~ 0 | % | ~ 0 | -76.302'498'000'0 | MeV | 8.253'849'000'0 | MeV | 2.340'000'000'0 | nm | 0.350'000'000'0 | b | 1.49E-1 | year | 4.710 | mega-seconds ( x⁶ ) | 100.000'000 | % | β+ | 2,017.500 | keV | ¹⁴⁸Sm | ¹⁴⁸Eu > [ 100 % , β+ , 2,017.5 keV ] > ¹⁴⁸Sm | α | 2,693.700 | keV | ¹⁴⁴Pm | ¹⁴⁸Eu > [ , α , 2,693.7 keV ] > ¹⁴⁴Pm | 100.000'001 | % | ¹⁴⁰Ce | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_149_u | Unstable | ¹⁴⁹Eu | Boson | 63 | p | 86 | n | 5/2 | 1 | 148.917'931'238'0 | u | ~ 0 | % | ~ 0 | -76.446'560'000'0 | MeV | 8.253'590'000'0 | MeV | 3.565'000'000'0 | nm | 0.750'000'000'0 | b | 2.55E-1 | year | 8.040 | mega-seconds ( x⁶ ) | 100.000'000 | % | ϵ | 695.360 | keV | ¹⁴⁹Sm | ¹⁴⁹Eu > [ 100 % , ϵ , 695.36 keV ] > ¹⁴⁹Sm | ? | % | ¹⁴⁵Nd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_150_u | Unstable | ¹⁵⁰Eu | Fermion | 63 | p | 87 | n | 5 | -1 | 149.919'701'819'0 | u | ~ 0 | % | ~ 0 | -74.797'274'000'0 | MeV | 8.241'380'000'0 | MeV | 2.708'000'000'0 | nm | 1.130'000'000'0 | b | 3.68E+1 | years | 1.161 | giga-seconds ( x⁹ ) | 100.000'000 | % | β+ | 1,237.870 | keV | ¹⁵⁰Sm | ¹⁵⁰Eu > [ 100 % , β+ , 1,237.87 keV ] > ¹⁵⁰Sm | 100.000'000 | % | ¹⁵⁰Sm | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_151_s | Stable | ¹⁵¹Eu | Boson | 63 | p | 88 | n | 5/2 | 1 | 150.919'850'161'0 | u | 47.810'000 | % | 72.154'780'362'0 | -74.659'094'000'0 | MeV | 8.239'339'000'0 | MeV | 3.471'700'000'0 | nm | 0.903'000'000'0 | b | - | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_152_u | Unstable | ¹⁵²Eu | Fermion | 63 | p | 89 | n | 3 | -1 | 151.921'744'534'0 | u | ~ 0 | % | ~ 0 | -72.894'497'000'0 | MeV | 8.226'624'000'0 | MeV | -1.941'400'000'0 | nm | 2.710'000'000'0 | b | 1.35E+1 | years | 427.482 | mega-seconds ( x⁶ ) | 72.100'000 | % | β+ | 852.068 | keV | ¹⁵²Sm | ¹⁵²Eu > [ 72.1 % , β+ , 852.068 keV ] > ¹⁵²Sm | β- | 1,819.710 | keV | ¹⁵²Gd | ¹⁵²Eu > [ , β- , 1,819.71 keV ] > ¹⁵²Gd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_153_s | Stable | ¹⁵³Eu | Boson | 63 | p | 90 | n | 5/2 | 1 | 152.921'230'339'0 | u | 52.190'000 | % | 79.809'590'113'9 | -73.373'467'000'0 | MeV | 8.228'740'000'0 | MeV | 1.533'000'000'0 | nm | 2.412'000'000'0 | b | - | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_154_u | Unstable | ¹⁵⁴Eu | Fermion | 63 | p | 91 | n | 3 | -1 | 153.922'979'237'0 | u | ~ 0 | % | ~ 0 | -71.744'378'000'0 | MeV | -71.744'378'000'0 | MeV | -2.005'000'000'0 | nm | 2.840'000'000'0 | b | 8.60E+0 | years | 271.386 | mega-seconds ( x⁶ ) | 100.000'000 | % | β- | 1,698.840 | keV | ¹⁵⁴Gd | ¹⁵⁴Eu > [ 100 % , β- , 1,698.84 keV ] > ¹⁵⁴Gd | ϵ | 717.220 | keV | ¹⁵⁴Sm | ¹⁵⁴Eu > [ , ϵ , 717.22 keV ] > ¹⁵⁴Sm | 100.000'000 | % | ¹⁵⁴Gd | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_155_u | Unstable | ¹⁵⁵Eu | Boson | 63 | p | 92 | n | 5/2 | 1 | 154.922'893'260'0 | u | ~ 0 | % | ~ 0 | -71.824'466'000'0 | MeV | 8.216'715'000'0 | MeV | 1.560'000'000'0 | nm | 2.340'000'000'0 | b | 4.76E+0 | years | 150.353 | mega-seconds ( x⁶ ) | 100.000'000 | % | β- | 252.660 | keV | ¹⁵⁵Gd | ¹⁵⁵Eu > [ 100 % , β- , 252.66 keV ] > ¹⁵⁵Gd | 100.000'000 | % | ¹⁵⁵Gd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_156_u | Unstable | ¹⁵⁶Eu | Fermion | 63 | p | 93 | n | 0 | 1 | 155.924'752'249'0 | u | ~ 0 | % | ~ 0 | -70.092'829'000'0 | MeV | 8.204'682'000'0 | MeV | - | - | 4.16E-2 | year | 1.312 | mega-seconds ( x⁶ ) | 100.000'000 | % | β- | 2,449.370 | keV | ¹⁵⁶Gd | ¹⁵⁶Eu > [ 100 % , β- , 2,449.37 keV ] > ¹⁵⁶Gd | 100.000'000 | % | ¹⁵⁶Gd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_157_u | Unstable | ¹⁵⁷Eu | Boson | 63 | p | 94 | n | 5/2 | 1 | 156.925'423'647'0 | u | ~ 0 | % | ~ 0 | -69.467'426'000'0 | MeV | 8.199'850'000'0 | MeV | 1.500'000'000'0 | nm | 2.600'000'000'0 | b | 1.73E-3 | year | 54.650 | kilo-seconds ( x³ ) | 100.000'000 | % | β- | 1,363.250 | keV | ¹⁵⁷Gd | ¹⁵⁷Eu > [ 100 % , β- , 1,363.25 keV ] > ¹⁵⁷Gd | 100.000'000 | % | ¹⁵⁷Gd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_158_u | Unstable | ¹⁵⁸Eu | Fermion | 63 | p | 95 | n | 1 | -1 | 157.927'845'302'0 | u | ~ 0 | % | ~ 0 | -67.211'669'000'0 | MeV | 8.184'759'000'0 | MeV | 1.440'000'000'0 | nm | 0.660'000'000'0 | b | 8.71E-5 | year | 2.750 | kilo-seconds ( x³ ) | 100.000'000 | % | β- | 3,485.100 | keV | ¹⁵⁸Gd | ¹⁵⁸Eu > [ 100 % , β- , 3,485.1 keV ] > ¹⁵⁸Gd | 100.000'000 | % | ¹⁵⁸Gd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_159_u | Unstable | ¹⁵⁹Eu | Boson | 63 | p | 96 | n | 5/2 | 1 | 158.929'088'861'0 | u | ~ 0 | % | ~ 0 | -66.053'301'000'0 | MeV | 8.176'760'000'0 | MeV | 1.380'000'000'0 | nm | - | 3.45E-5 | year | 1.090 | kilo-seconds ( x³ ) | 100.000'000 | % | β- | 2,515.000 | keV | ¹⁵⁹Gd | ¹⁵⁹Eu > [ 100 % , β- , 2,515.0 keV ] > ¹⁵⁹Gd | 100.000'000 | % | ¹⁵⁹Tb | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_160_u | Unstable | ¹⁶⁰Eu | Fermion | 63 | p | 97 | n | 1 | -1 | 159.931'971'000'0 | u | ~ 0 | % | ~ 0 | -63.369'000'000'0 | MeV | 8.159'000'000'0 | MeV | - | - | 1.20E-5 | year | 379.800 | seconds ( x⁰ ) | 100.000'000 | % | β- | 4,580.000 | keV | ¹⁶⁰Gd | ¹⁶⁰Eu > [ 100 % , β- , 4,580.0 keV ] > ¹⁶⁰Gd | ? | % | ¹⁶⁰Dy | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_161_u | Unstable | ¹⁶¹Eu | Boson | 63 | p | 98 | n | 5/2 | 1 | 160.933'680'000'0 | u | ~ 0 | % | ~ 0 | -61.777'000'000'0 | MeV | 8.149'000'000'0 | MeV | - | - | 8.24E-7 | year | 26.000 | seconds ( x⁰ ) | 100.000'000 | % | β- | 3,736.000 | keV | ¹⁶¹Gd | ¹⁶¹Eu > [ 100 % , β- , 3,736.0 keV ] > ¹⁶¹Gd | 100.000'000 | % | ¹⁶¹Dy | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_162_u | Unstable | ¹⁶²Eu | Fermion | 63 | p | 99 | n | ? | 0 | 161.937'040'000'0 | u | ~ 0 | % | ~ 0 | -58.647'000'000'0 | MeV | 8.129'000'000'0 | MeV | - | - | 3.36E-7 | year | 10.600 | seconds ( x⁰ ) | 100.000'000 | % | β- | 5,640.000 | keV | ¹⁶²Gd | ¹⁶²Eu > [ 100 % , β- , 5,640.0 keV ] > ¹⁶²Gd | 100.000'000 | % | ¹⁶²Dy | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_163_u | Unstable | ¹⁶³Eu | Boson | 63 | p | 100 | n | 5/2 | 1 | 162.939'210'000'0 | u | ~ 0 | % | ~ 0 | -56.626'000'000'0 | MeV | 8.116'000'000'0 | MeV | - | - | 1.90E-6 | year | 60.000 | seconds ( x⁰ ) | ? | % | β- | 4,862.000 | keV | ¹⁶³Gd | ¹⁶³Eu > [ ? % , β- , 4,862.0 keV ] > ¹⁶³Gd | ? | % | ¹⁶³Dy | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_164_u | Unstable | ¹⁶⁴Eu | Fermion | 63 | p | 101 | n | ? | 0 | 163.942'990'000'0 | u | ~ 0 | % | ~ 0 | -53.104'000'000'0 | MeV | 8.095'000'000'0 | MeV | - | - | 6.34E-8 | year | 2.000 | seconds ( x⁰ ) | ? | % | β- | 6,642.000 | keV | ¹⁶⁴Gd | ¹⁶⁴Eu > [ ? % , β- , 6,642.0 keV ] > ¹⁶⁴Gd | ? | % | ¹⁶⁴Dy | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_165_u | Unstable | ¹⁶⁵Eu | Boson | 63 | p | 102 | n | 5/2 | 1 | 164.945'720'000'0 | u | ~ 0 | % | ~ 0 | -50.561'000'000'0 | MeV | 8.079'000'000'0 | MeV | - | - | 3.17E-8 | year | 1,000.000 | milliseconds ( x⁻³ ) | ? | % | β- | 5,906.000 | keV | ¹⁶⁵Gd | ¹⁶⁵Eu > [ ? % , β- , 5,906.0 keV ] > ¹⁶⁵Gd | ? | % | ¹⁶⁵Ho | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_166_u | Unstable | ¹⁶⁶Eu | Fermion | 63 | p | 103 | n | ? | 0 | 165.949'970'000'0 | u | ~ 0 | % | ~ 0 | -46.603'000'000'0 | MeV | 8.055'000'000'0 | MeV | - | - | 1.27E-8 | year | 400.000 | milli-seconds ( x⁻³ ) | ? | % | β- | 7,797.000 | keV | ¹⁶⁶Gd | ¹⁶⁶Eu > [ ? % , β- , 7,797.0 keV ] > ¹⁶⁶Gd | ? | % | ¹⁶⁶Er | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_063_eu_167_u | Unstable | ¹⁶⁷Eu | Boson | 63 | p | 104 | n | 5/2 | 1 | 166.953'210'000'0 | u | ~ 0 | % | ~ 0 | -43.585'000'000'0 | MeV | 8.037'000'000'0 | MeV | - | - | 6.34E-9 | year | 200.000 | milli-seconds ( x⁻³ ) | ? | % | β- | 7,117.000 | keV | ¹⁶⁷Gd | ¹⁶⁷Eu > [ ? % , β- , 7,117.0 keV ] > ¹⁶⁷Gd | ? | % | ¹⁶⁷Er |
