37 – Rubidium, Rb
37 – Rubidium, Rb
37 – Rubidium, Rb
37 – Rubidium, Rb
37 – Rubidium, Rb
Rubidium is a soft, silvery-white metallic element of the alkali metal group. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, such as very rapid oxidation in air. Natural rubidium is a mix of two isotopes: 85Rb, the only stable one, constitutes 72% of it. The remaining 28% is the slightly radioactive 87Rb with a half-life of 49 billion years—more than three times longer than the estimated age of the universe.
Rubidium is a soft, silvery-white metallic element of the alkali metal group. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, such as very rapid oxidation in air. Natural rubidium is a mix of two isotopes: 85Rb, the only stable one, constitutes 72% of it. The remaining 28% is the slightly radioactive 87Rb with a half-life of 49 billion years—more than three times longer than the estimated age of the universe.
Rubidium is a soft, silvery-white metallic element of the alkali metal group. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, such as very rapid oxidation in air. Natural rubidium is a mix of two isotopes: 85Rb, the only stable one, constitutes 72% of it. The remaining 28% is the slightly radioactive 87Rb with a half-life of 49 billion years—more than three times longer than the estimated age of the universe.
Rubidium is a soft, silvery-white metallic element of the alkali metal group. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, such as very rapid oxidation in air. Natural rubidium is a mix of two isotopes: 85Rb, the only stable one, constitutes 72% of it. The remaining 28% is the slightly radioactive 87Rb with a half-life of 49 billion years—more than three times longer than the estimated age of the universe.
Rubidium is a soft, silvery-white metallic element of the alkali metal group. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, such as very rapid oxidation in air. Natural rubidium is a mix of two isotopes: 85Rb, the only stable one, constitutes 72% of it. The remaining 28% is the slightly radioactive 87Rb with a half-life of 49 billion years—more than three times longer than the estimated age of the universe.
1861 by Robert Bunsen and Gustav Kirchhoff, Germany.
1861 by Robert Bunsen and Gustav Kirchhoff, Germany.
1861 by Robert Bunsen and Gustav Kirchhoff, Germany.
1861 by Robert Bunsen and Gustav Kirchhoff, Germany.
1861 by Robert Bunsen and Gustav Kirchhoff, Germany.
DISCOVERY
DISCOVERY
DISCOVERY
DISCOVERY
DISCOVERY
Latin, 'rubidius' meaning 'dark red' or 'deepest red'.
Latin, 'rubidius' meaning 'dark red' or 'deepest red'.
Latin, 'rubidius' meaning 'dark red' or 'deepest red'.
Latin, 'rubidius' meaning 'dark red' or 'deepest red'.
Latin, 'rubidius' meaning 'dark red' or 'deepest red'.
ETYMOLOGY
ETYMOLOGY
ETYMOLOGY
ETYMOLOGY
ETYMOLOGY
Rubidium
Rubidium
Rubidium
Rubidium
Rubidium
Element
Element
Element
Element
Element
Rb
Rb
Rb
Rb
Rb
Symbol
Symbol
Symbol
Symbol
Symbol
37
37
37
37
37
Atomic Number
Atomic Number
Atomic Number
Atomic Number
Atomic Number
Alkali Metal
Alkali Metal
Alkali Metal
Alkali Metal
Alkali Metal
Classification
Classification
Classification
Classification
Classification
7440-17-7
7440-17-7
7440-17-7
7440-17-7
7440-17-7
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
-
-
-
-
-
Poisson Ratio
Poisson Ratio
Poisson Ratio
Poisson Ratio
Poisson Ratio
55.788 cm3
55.788 cm3
55.788 cm3
55.788 cm3
55.788 cm3
Molar Volume
Molar Volume
Molar Volume
Molar Volume
Molar Volume
216.00k Pa, 2.131'8 Atm
216.00k Pa, 2.131'8 Atm
216.00k Pa, 2.131'8 Atm
216.00k Pa, 2.131'8 Atm
2.131'8 Atm
Brinell Hardness
Brinell Hardness
Brinell Hardness
Brinell Hardness
Brinell Hardness
0.30
0.30
0.30
0.30
0.30
Mohs Hardness
Mohs Hardness
Mohs Hardness
Mohs Hardness
Mohs Hardness
-
-
-
-
-
Vickers Hardness
Vickers Hardness
Vickers Hardness
Vickers Hardness
Vickers Hardness
1,300 m/s, Mach 3.790'1
1,300 m/s, Mach 3.790'1
1,300 m/s, Mach 3.790'1
1,300 m/s, Mach 3.790'1
1,300 m/s
Speed of Sound
Speed of Sound
Speed of Sound
Speed of Sound
Speed of Sound
2.50G Pa, 24.673'1k Atm
2.50G Pa, 24.673'1k Atm
2.50G Pa, 24.673'1k Atm
2.50G Pa, 24.673'1k Atm
24.673'1k Atm
Bulk Modulus
Bulk Modulus
Bulk Modulus
Bulk Modulus
Bulk Modulus
-
-
-
-
-
Shear Modulus
Shear Modulus
Shear Modulus
Shear Modulus
Shear Modulus
2.40G Pa, 23.686'2k Atm
2.40G Pa, 23.686'2k Atm
2.40G Pa, 23.686'2k Atm
2.40G Pa, 23.686'2k Atm
23.686'2k Atm
Young Modulus
Young Modulus
Young Modulus
Young Modulus
Young Modulus
Allotropes
Allotropes
Allotropes
Allotropes
Allotropes
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312.46 K, 39.31 °C
312.46 K, 39.31 °C
312.46 K, 39.31 °C
312.46 K, 39.31 °C
39.31 °C
Melting Point
Melting Point
Melting Point
Melting Point
Melting Point
961.15 K, 688.00 °C
961.15 K, 688.00 °C
961.15 K, 688.00 °C
961.15 K, 688.00 °C
688.00 °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
2,093.00 K, 1,819.85 °C
2,093.00 K, 1,819.85 °C
2,093.00 K, 1,819.85 °C
2,093.00 K, 1,819.85 °C
1,819.85 °C
Critical Temperature
Critical Temperature
Critical Temperature
Critical Temperature
Critical Temperature
16.00M Pa, 158 Atm
16.00M Pa, 158 Atm
16.00M Pa, 158 Atm
16.00M Pa, 158 Atm
158 Atm
Critical Pressure
Critical Pressure
Critical Pressure
Critical Pressure
Critical Pressure
58.000'000 W/(m K)
58.000'000 W/(m K)
58.000'000 W/(m K)
58.000'000 W/(m K)
58.000'000 W/(m K)
Thermal Conductivity
Thermal Conductivity
Thermal Conductivity
Thermal Conductivity
Thermal Conductivity
-
-
-
-
-
Thermal Expansion
Thermal Expansion
Thermal Expansion
Thermal Expansion
Thermal Expansion
364.00 J/(kg K)
364.00 J/(kg K)
364.00 J/(kg K)
364.00 J/(kg K)
364.00 J/(kg K)
Specific Heat
Specific Heat
Specific Heat
Specific Heat
Specific Heat
2.190 kJ/mol
2.190 kJ/mol
2.190 kJ/mol
2.190 kJ/mol
2.190 kJ/mol
Heat Fusion
Heat Fusion
Heat Fusion
Heat Fusion
Heat Fusion
72.000 kJ/mol
72.000 kJ/mol
72.000 kJ/mol
72.000 kJ/mol
72.000 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
-
-
-
-
-
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
8.30M S/m
8.30M S/m
8.30M S/m
8.30M S/m
8.30M S/m
Conductivity
Conductivity
Conductivity
Conductivity
Conductivity
120.00n Ω.m
120.00n Ω.m
120.00n Ω.m
120.00n Ω.m
120.00n Ω.m
Resistivity
Resistivity
Resistivity
Resistivity
Resistivity
-
-
-
-
-
Superconducting Point
Superconducting Point
Superconducting Point
Superconducting Point
Superconducting Point
-
-
-
-
-
Magnetic Type
Magnetic Type
Magnetic Type
Magnetic Type
Magnetic Type
0.000'000'002'6
0.000'000'002'6
0.000'000'002'6
0.000'000'002'6
0.000'000'002'6
Mass Susceptibility
Mass Susceptibility
Mass Susceptibility
Mass Susceptibility
Mass Susceptibility
0.000'000'000'222'00
0.000'000'000'222'00
0.000'000'000'222'00
0.000'000'000'222'00
0.000'000'000'222'00
Molar Susceptibility
Molar Susceptibility
Molar Susceptibility
Molar Susceptibility
Molar Susceptibility
0.000'003'980'00
0.000'003'980'00
0.000'003'980'00
0.000'003'980'00
0.000'003'980'00
Volume Susceptibility
Volume Susceptibility
Volume Susceptibility
Volume Susceptibility
Volume Susceptibility
Material Composition
Material Composition
Material Composition
Material Composition
Material Composition
0.000'001 %
0.000'001 %
0.000'001 %
0.000'001 %
0.000'001 %
Universe
Universe
Universe
Universe
Universe
0.000'32 %
0.000'32 %
0.000'32 %
0.000'32 %
0.000'32 %
Meteorites
Meteorites
Meteorites
Meteorites
Meteorites
0.000'003 %
0.000'003 %
0.000'003 %
0.000'003 %
0.000'003 %
Sun
Sun
Sun
Sun
Sun
0.006 %
0.006 %
0.006 %
0.006 %
0.006 %
Earth Crust
Earth Crust
Earth Crust
Earth Crust
Earth Crust
0.000'013 %
0.000'013 %
0.000'013 %
0.000'013 %
0.000'013 %
Oceans
Oceans
Oceans
Oceans
Oceans
0.000'46 %
0.000'46 %
0.000'46 %
0.000'46 %
0.000'46 %
Humans
Humans
Humans
Humans
Humans
85.467'663'6
85.467'663'6
85.467'663'6
85.467'663'6
85.467'663'6
Atomic Weight
Atomic Weight
Atomic Weight
Atomic Weight
Atomic Weight
265 pm
265 pm
265 pm
265 pm
265 pm
Atomic Radius
Atomic Radius
Atomic Radius
Atomic Radius
Atomic Radius
210 pm
210 pm
210 pm
210 pm
210 pm
Covalent Radius Single Bond
Covalent Radius Single Bond
Covalent Radius Single Bond
Covalent Radius Single Bond
Covalent Radius Single Bond
202 pm
202 pm
202 pm
202 pm
202 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
303 pm
303 pm
303 pm
303 pm
303 pm
Van der Waals Radius
Van der Waals Radius
Van der Waals Radius
Van der Waals Radius
Van der Waals Radius
[Kr]5s1
[Kr]5s1
[Kr]5s1
[Kr]5s1
[Kr]5s1
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
1.532'00 g/cm3
1.532'00 g/cm3
1.532'00 g/cm3
1.532'00 g/cm3
1.532'00 g/cm3
Density as Solid
Density as Solid
Density as Solid
Density as Solid
Density as Solid
1.460'00 g/cm3
1.460'00 g/cm3
1.460'00 g/cm3
1.460'00 g/cm3
1.460'00 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
558.5, 558.5 & 558.5 pm
558.5, 558.5 & 558.5 pm
558.5, 558.5 & 558.5 pm
558.5, 558.5 & 558.5 pm
558.5, 558.5 & 558.5 pm
Lattice Constants
Lattice Constants
Lattice Constants
Lattice Constants
Lattice Constants
1
1
1
1
1
Valence
Valence
Valence
Valence
Valence
0.82
0.82
0.82
0.82
0.82
Electronegativity
Electronegativity
Electronegativity
Electronegativity
Electronegativity
46.89 kJ/mol
46.89 kJ/mol
46.89 kJ/mol
46.89 kJ/mol
46.89 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
5s1 = 5, 0, 0, +1/2
5s1 = 5, 0, 0, +1/2
5s1 = 5, 0, 0, +1/2
5s1 = 5, 0, 0, +1/2
5s1 = 5, 0, 0, +1/2
Quantum Numbers
Quantum Numbers
Quantum Numbers
Quantum Numbers
Quantum Numbers
6.800'00 b σs
6.800'00 b σs
6.800'00 b σs
6.800'00 b σs
6.800'00 b σs
Neutron Cross Section
Neutron Cross Section
Neutron Cross Section
Neutron Cross Section
Neutron Cross Section
0.380'00 b σa
0.380'00 b σa
0.380'00 b σa
0.380'00 b σa
0.380'00 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_037_rb_71_u | Unstable | ⁷¹Rb | Boson | 37 | p | 34 | n | 5/2 | -1 | 70.965'320'000'0 | u | ~ 0 | % | ~ 0 | -32.304'000'000'0 | MeV | 8.119'000'000'0 | MeV | - | - | ? | ? | % | p | 2,083.000 | keV | ⁷⁰Kr | ⁷¹Rb > [ ? % , p , 2,083.0 keV ] > ⁷⁰Kr | ? | % | ⁷⁰Ge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_72_u | Unstable | ⁷²Rb | Fermion | 37 | p | 35 | n | 3 | 1 | 71.959'080'000'0 | u | ~ 0 | % | ~ 0 | -38.117'000'000'0 | MeV | 8.199'000'000'0 | MeV | - | - | 4.75E-14 | year | 1.500 | micro-seconds ( x⁻⁶ ) | ? | % | p | 1,518.000 | keV | ⁷¹Kr | ⁷²Rb > [ ? % , p , 1,518.0 keV ] > ⁷¹Kr | ? | % | ⁷⁰Ge | ? | % | ⁷¹Ga | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_73_u | Unstable | ⁷³Rb | Boson | 37 | p | 36 | n | 3/2 | -1 | 72.950'561'000'0 | u | ~ 0 | % | ~ 0 | -46.052'000'000'0 | MeV | 8.306'000'000'0 | MeV | - | - | 9.51E-16 | year | 30.000 | nano-seconds ( x⁻⁹ ) | ? | % | p | 600.000 | keV | ⁷²Kr | ⁷³Rb > [ ? % , p , 600.0 keV ] > ⁷²Kr | ? | % | ⁷²Ge | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_74_u | Unstable | ⁷⁴Rb | Fermion | 37 | p | 37 | n | 0 | 1 | 73.944'264'751'0 | u | ~ 0 | % | ~ 0 | -51.917'050'000'0 | MeV | 8.381'726'000'0 | MeV | - | - | 2.05E-9 | year | 64.760 | milli-seconds ( x⁻³ ) | 100.000'000 | % | β+ | 9,392.260 | keV | ⁷⁴Kr | ⁷⁴Rb > [ 100 % , β+ , 9,392.26 keV ] > ⁷⁴Kr | ? | % | ⁷⁴Ge | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_75_u | Unstable | ⁷⁵Rb | Boson | 37 | p | 38 | n | 3/2 | -1 | 74.938'570'000'0 | u | ~ 0 | % | ~ 0 | -57.221'677'000'0 | MeV | 8.448'315'000'0 | MeV | - | - | 6.02E-7 | year | 19.000 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 6,079.700 | keV | ⁷⁵Kr | ⁷⁵Rb > [ 100 % , β+ , 6,079.7 keV ] > ⁷⁵Kr | 100.000'000 | % | ⁷⁵As | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_76_u | Unstable | ⁷⁶Rb | Fermion | 37 | p | 39 | n | 1 | -1 | 75.935'072'226'0 | u | ~ 0 | % | ~ 0 | -60.479'832'000'0 | MeV | 8.486'225'000'0 | MeV | -0.372'622'800'0 | nm | 0.380'000'000'0 | b | 1.16E-6 | year | 36.500 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 7,512.290 | keV | ⁷⁶Kr | ⁷⁶Rb > [ 100 % , β+ , 7,512.29 keV ] > ⁷⁶Kr | β+α | ? | keV | ⁷²Se | ⁷⁶Rb > [ , β+α , ? keV ] > ⁷²Se | 100.000'000 | % | ⁷⁶Se | 0.000'000 | % | ⁷²Ge | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_77_u | Unstable | ⁷⁷Rb | Boson | 37 | p | 40 | n | 3/2 | -1 | 76.930'408'000'0 | u | ~ 0 | % | ~ 0 | -64.824'531'000'0 | MeV | 8.537'261'000'0 | MeV | 0.654'468'000'0 | nm | 0.700'000'000'0 | b | 7.16E-6 | year | 226.020 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 4,322.710 | keV | ⁷⁷Kr | ⁷⁷Rb > [ 100 % , β+ , 4,322.71 keV ] > ⁷⁷Kr | 100.000'000 | % | ⁷⁷Se | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_78_u | Unstable | ⁷⁸Rb | Fermion | 37 | p | 41 | n | 0 | 1 | 77.928'141'000'0 | u | ~ 0 | % | ~ 0 | -66.936'228'000'0 | MeV | 8.558'361'000'0 | MeV | - | - | 3.36E-5 | year | 1.060 | kilo-seconds ( x³ ) | 100.000'000 | % | β+ | 6,221.300 | keV | ⁷⁸Kr | ⁷⁸Rb > [ 100 % , β+ , 6,221.3 keV ] > ⁷⁸Kr | ? | % | ⁷⁸Se | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_79_u | Unstable | ⁷⁹Rb | Boson | 37 | p | 42 | n | 5/2 | 1 | 78.923'989'460'0 | u | ~ 0 | % | ~ 0 | -70.803'362'000'0 | MeV | 8.601'147'000'0 | MeV | 3.357'900'000'0 | nm | -0.098'000'000'0 | b | 4.34E-5 | year | 1.370 | kilo-seconds ( x³ ) | 100.000'000 | % | β+ | 2,617.170 | keV | ⁷⁹Kr | ⁷⁹Rb > [ 100 % , β+ , 2,617.17 keV ] > ⁷⁹Kr | 100.000'000 | % | ⁷⁹Br | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_80_u | Unstable | ⁸⁰Rb | Fermion | 37 | p | 43 | n | 1 | 1 | 79.922'519'250'0 | u | ~ 0 | % | ~ 0 | -72.172'854'000'0 | MeV | 8.611'642'000'0 | MeV | -0.083'600'000'0 | nm | 0.348'000'000'0 | b | 1.06E-6 | year | 33.400 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 4,697.440 | keV | ⁸⁰Kr | ⁸⁰Rb > [ 100 % , β+ , 4,697.44 keV ] > ⁸⁰Kr | 100.000'000 | % | ⁸⁰Kr | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_81_u | Unstable | ⁸¹Rb | Boson | 37 | p | 44 | n | 3/2 | -1 | 80.918'995'913'0 | u | ~ 0 | % | ~ 0 | -75.454'821'000'0 | MeV | 8.645'490'000'0 | MeV | 2.059'500'000'0 | nm | 0.398'000'000'0 | b | 5.22E-4 | year | 16.470 | kilo-seconds ( x³ ) | 100.000'000 | % | β+ | 1,217.020 | keV | ⁸¹Kr | ⁸¹Rb > [ 100 % , β+ , 1,217.02 keV ] > ⁸¹Kr | 100.000'000 | % | ⁸¹Br | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_82_u | Unstable | ⁸²Rb | Fermion | 37 | p | 45 | n | 1 | 1 | 81.918'208'598'0 | u | ~ 0 | % | ~ 0 | -76.188'201'000'0 | MeV | 8.647'431'000'0 | MeV | 0.554'508'300'0 | nm | 0.190'000'000'0 | b | 2.42E-6 | year | 76.380 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 3,379.000 | keV | ⁸²Kr | ⁸²Rb > [ 100 % , β+ , 3,379.0 keV ] > ⁸²Kr | 100.000'000 | % | ⁸²Kr | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_83_u | Unstable | ⁸³Rb | Boson | 37 | p | 46 | n | 5/2 | -1 | 82.915'109'701'0 | u | ~ 0 | % | ~ 0 | -79.074'805'000'0 | MeV | 8.675'269'000'0 | MeV | 1.424'900'000'0 | nm | 0.196'000'000'0 | b | 2.36E-1 | year | 7.450 | mega-seconds ( x⁶ ) | 100.000'000 | % | ϵ | 906.910 | keV | ⁸³Kr | ⁸³Rb > [ 100 % , ϵ , 906.91 keV ] > ⁸³Kr | 100.000'000 | % | ⁸³Kr | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_84_u | Unstable | ⁸⁴Rb | Fermion | 37 | p | 47 | n | 2 | -1 | 83.914'384'821'0 | u | ~ 0 | % | ~ 0 | -79.750'025'000'0 | MeV | 8.676'117'000'0 | MeV | -1.324'116'000'0 | nm | -0.015'000'000'0 | b | 8.97E-2 | year | 2.831 | mega-seconds ( x⁶ ) | 96.200'000 | % | β+ | 1,658.770 | keV | ⁸⁴Kr | ⁸⁴Rb > [ 96.2 % , β+ , 1,658.77 keV ] > ⁸⁴Kr | β- | 893.810 | keV | ⁸⁴Sr | ⁸⁴Rb > [ , β- , 893.81 keV ] > ⁸⁴Sr | 96.200'000 | % | ⁸⁴Kr | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_85_s | Stable | ⁸⁵Rb | Boson | 37 | p | 48 | n | 5/2 | -1 | 84.911'789'737'0 | u | 72.170'000 | % | 61.280'838'653'2 | -82.167'331'000'0 | MeV | 8.697'441'000'0 | MeV | 1.353'351'500'0 | nm | 0.230'000'000'0 | b | - | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_86_u | Unstable | ⁸⁶Rb | Fermion | 37 | p | 49 | n | 2 | -1 | 85.911'167'419'0 | u | ~ 0 | % | ~ 0 | -82.747'017'000'0 | MeV | 8.696'901'000'0 | MeV | -1.692'000'000'0 | nm | 0.190'000'000'0 | b | 5.10E-2 | year | 1.611 | mega-seconds ( x⁶ ) | 100.000'000 | % | β+ | 1,776.560 | keV | ⁸⁶Sr | ⁸⁶Rb > [ 100 % , β+ , 1,776.56 keV ] > ⁸⁶Sr | ϵ | 518.554 | keV | ⁸⁶Kr | ⁸⁶Rb > [ , ϵ , 518.554 keV ] > ⁸⁶Kr | 100.000'000 | % | ⁸⁶Sr | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_87_u | Unstable | ⁸⁷Rb | Boson | 37 | p | 50 | n | 3/2 | -1 | 86.909'180'526'0 | u | 27.830'000 | % | 24.186'824'940'4 | -84.597'795'000'0 | MeV | 8.710'983'000'0 | MeV | 2.751'818'000'0 | nm | 0.127'000'000'0 | b | 4.93E+10 | years | 1.555 | exa-seconds ( x¹⁸ ) | 100.000'000 | % | β- | 282.620 | keV | ⁸⁷Sr | ⁸⁷Rb > [ 100 % , β- , 282.62 keV ] > ⁸⁷Sr | 100.000'000 | % | ⁸⁷Sr | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_88_u | Unstable | ⁸⁸Rb | Fermion | 37 | p | 51 | n | 2 | -1 | 87.911'315'588'0 | u | ~ 0 | % | ~ 0 | -82.608'998'000'0 | MeV | 8.681'115'000'0 | MeV | 0.508'000'000'0 | nm | -0.010'000'000'0 | b | 3.38E-5 | year | 1.067 | kilo-seconds ( x³ ) | 100.000'000 | % | β- | 5,312.740 | keV | ⁸⁷Sr | ⁸⁸Rb > [ 100 % , β- , 5,312.74 keV ] > ⁸⁷Sr | 100.000'000 | % | ⁸⁸Sr | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_89_u | Unstable | ⁸⁹Rb | Boson | 37 | p | 52 | n | 3/2 | -1 | 88.912'278'016'0 | u | ~ 0 | % | ~ 0 | -81.712'502'000'0 | MeV | 8.664'190'000'0 | MeV | - | - | 2.88E-5 | year | 909.000 | seconds ( x⁰ ) | 100.000'000 | % | β- | 4,496.640 | keV | ⁸⁹Sr | ⁸⁹Rb > [ 100 % , β- , 4,496.64 keV ] > ⁸⁹Sr | 100.000'000 | % | ⁸⁹Y | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_90_u | Unstable | ⁹⁰Rb | Fermion | 37 | p | 53 | n | 0 | -1 | 89.914'801'694'0 | u | ~ 0 | % | ~ 0 | -79.361'712'000'0 | MeV | 8.631'483'000'0 | MeV | - | - | 5.01E-6 | year | 157.980 | seconds ( x⁰ ) | 100.000'000 | % | β- | 6,579.890 | keV | ⁹⁰Sr | ⁹⁰Rb > [ 100 % , β- , 6,579.89 keV ] > ⁹⁰Sr | 100.000'000 | % | ⁹⁰Zr | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_91_u | Unstable | ⁹¹Rb | Boson | 37 | p | 54 | n | 3/2 | -1 | 90.916'536'958'0 | u | ~ 0 | % | ~ 0 | -77.745'323'000'0 | MeV | 8.607'564'000'0 | MeV | 2.181'500'000'0 | nm | 0.154'000'000'0 | b | 1.85E-6 | year | 58.398 | seconds ( x⁰ ) | 100.000'000 | % | β- | 5,899.960 | keV | ⁹¹Sr | ⁹¹Rb > [ 100 % , β- , 5,899.96 keV ] > ⁹¹Sr | 100.000'000 | % | ⁹¹Zr | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_92_u | Unstable | ⁹²Rb | Fermion | 37 | p | 55 | n | 0 | -1 | 91.919'728'900'0 | u | ~ 0 | % | ~ 0 | -74.772'048'000'0 | MeV | 8.569'417'000'0 | MeV | - | - | 1.57E-7 | year | 4.942 | seconds ( x⁰ ) | 100.000'000 | % | β- | 8,095.650 | keV | ⁹²Sr | ⁹²Rb > [ 100 % , β- , 8,095.65 keV ] > ⁹²Sr | 100.000'000 | % | ⁹²Zr | 0.010'700 | % | ⁹¹Zr | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_93_u | Unstable | ⁹³Rb | Boson | 37 | p | 56 | n | 5/2 | -1 | 92.922'041'876'0 | u | ~ 0 | % | ~ 0 | -72.617'525'000'0 | MeV | 8.540'895'000'0 | MeV | 1.409'500'000'0 | nm | 0.180'000'000'0 | b | 1.85E-7 | year | 5.840 | seconds ( x⁰ ) | 99.000'000 | % | β- | 7,467.080 | keV | ⁹³Sr | ⁹³Rb > [ 99 % , β- , 7,467.08 keV ] > ⁹³Sr | β-n | 2,178.860 | keV | ⁹²Sr | ⁹³Rb > [ , β-n , 2,178.86 keV ] > ⁹²Sr | 99.000'000 | % | ⁹³Nb | 1.390'000 | % | ⁹²Zr | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_94_u | Unstable | ⁹⁴Rb | Fermion | 37 | p | 57 | n | 3 | -1 | 93.926'404'946'0 | u | ~ 0 | % | ~ 0 | -68.553'352'000'0 | MeV | 8.492'663'000'0 | MeV | 1.498'1.498'1.498'1.498 | nm | 0.163'000'000'0 | b | 8.56E-8 | year | 2.702 | seconds ( x⁰ ) | 90.000'000 | % | β- | 10,287.000 | keV | ⁹⁴Sr | ⁹⁴Rb > [ 90 % , β- , 10,287.0 keV ] > ⁹⁴Sr | β-n | 3,459.900 | keV | ⁹³Sr | ⁹⁴Rb > [ , β-n , 3,459.9 keV ] > ⁹³Sr | 10.010'000 | % | ⁹³Nb | ? | % | ⁹⁴Mo | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_95_u | Unstable | ⁹⁵Rb | Boson | 37 | p | 58 | n | 5/2 | -1 | 94.929'302'889'0 | u | ~ 0 | % | ~ 0 | -65.853'935'000'0 | MeV | 8.459'813'000'0 | MeV | 1.333'600'000'0 | nm | 0.210'000'000'0 | b | 1.20E-8 | year | 377.500 | milli-seconds ( x⁻³ ) | 91.000'000 | % | β- | 9,262.900 | keV | ⁹⁵Sr | ⁹⁵Rb > [ 91 % , β- , 9,262.9 keV ] > ⁹⁵Sr | β-n | 4,915.200 | keV | ⁹⁴Sr | ⁹⁵Rb > [ , β-n , 4,915.2 keV ] > ⁹⁴Sr | 91.000'000 | % | ⁹⁵Mo | ? | % | ⁹⁴Mo | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_96_u | Unstable | ⁹⁶Rb | Fermion | 37 | p | 59 | n | 2 | 1 | 95.934'272'637'0 | u | ~ 0 | % | ~ 0 | -61.224'644'000'0 | MeV | 8.407'544'000'0 | MeV | 1.465'800'000'0 | nm | 0.250'000'000'0 | b | 6.43E-9 | year | 203.000 | milli-seconds ( x⁻³ ) | 87.000'000 | % | β- | 11,714.300 | keV | ⁹⁶Sr | ⁹⁶Rb > [ 87 % , β- , 11,714.3 keV ] > ⁹⁶Sr | β-n | 5,820.900 | keV | ⁹⁵Sr | ⁹⁶Rb > [ , β-n , 5,820.9 keV ] > ⁹⁵Sr | 87.000'000 | % | ⁹⁶Mo | 13.400'000 | % | ⁹⁵Mo | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_97_u | Unstable | ⁹⁷Rb | Boson | 37 | p | 60 | n | 3/2 | 1 | 96.937'351'916'0 | u | ~ 0 | % | ~ 0 | -58.356'314'000'0 | MeV | 8.374'508'000'0 | MeV | 1.841'000'000'0 | nm | 0.581'000'000'0 | b | 5.38E-9 | year | 169.900 | milli-seconds ( x⁻³ ) | 74.000'000 | % | β- | 10,431.800 | keV | ⁹⁷Sr | ⁹⁷Rb > [ 74 % , β- , 10,431.8 keV ] > ⁹⁷Sr | β-n | 6,511.300 | keV | ⁹⁶Sr | ⁹⁷Rb > [ , β-n , 6,511.3 keV ] > ⁹⁶Sr | 74.000'000 | % | ⁹⁷Mo | 0.257'799 | % | ⁹⁶Mo | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_98_u | Unstable | ⁹⁸Rb | Fermion | 37 | p | 61 | n | ? | -1 | 97.941'790'668'0 | u | ~ 0 | % | ~ 0 | -54.221'644'000'0 | MeV | 8.329'223'000'0 | MeV | - | - | 3.61E-9 | year | 114.000 | milli-seconds ( x⁻³ ) | 89.000'000 | % | β- | 12,424.000 | keV | ⁹⁸Sr | ⁹⁸Rb > [ 89 % , β- , 12,424.0 keV ] > ⁹⁸Sr | β-n | 6,495.100 | keV | ⁹⁷Sr | ⁹⁸Rb > [ , β-n , 6,495.1 keV ] > ⁹⁷Sr | 0.051'000 | % | β-2n | 2,574.000 | keV | ⁹⁶Sr | ⁹⁸Rb > [ 0.051 % , β-2n , 2,574.0 keV ] > ⁹⁶Sr | 14.299'660 | % | ⁹⁷Mo | 0.066'029 | % | ⁹⁶Mo | ? | % | ⁹⁸Mo | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_99_u | Unstable | ⁹⁹Rb | Boson | 37 | p | 62 | n | 5/2 | 1 | 98.945'379'283'0 | u | ~ 0 | % | ~ 0 | -50.878'870'000'0 | MeV | 8.292'853'000'0 | MeV | - | - | 1.59E-9 | year | 50.300 | milli-seconds ( x⁻³ ) | 84.000'000 | % | β- | 11,307.000 | keV | ⁹⁹Sr | ⁹⁹Rb > [ 84 % , β- , 11,307.0 keV ] > ⁹⁹Sr | β-n | 7,695.000 | keV | ⁹⁸Sr | ⁹⁹Rb > [ , β-n , 7,695.0 keV ] > ⁹⁸Sr | 82.320'000 | % | ⁹⁹Ru | 0.092'657 | % | ⁹⁷Mo | 0.000'023 | % | ⁹⁶Mo | ? | % | ⁹⁸Ru | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_100_u | Unstable | ¹⁰⁰Rb | Fermion | 37 | p | 63 | n | 3 | 1 | 99.949'870'000'0 | u | ~ 0 | % | ~ 0 | -46.696'000'000'0 | MeV | 8.249'000'000'0 | MeV | - | - | 1.62E-9 | year | 51.000 | milli-seconds ( x⁻³ ) | 94.000'000 | % | β- | 13,524.000 | keV | ¹⁰⁰Sr | ¹⁰⁰Rb > [ 94 % , β- , 13,524.0 keV ] > ¹⁰⁰Sr | β-n | 7,419.000 | keV | ⁹⁹Sr | ¹⁰⁰Rb > [ , β-n , 7,419.0 keV ] > ⁹⁹Sr | 0.150'000 | % | β-2n | 3,807.000 | keV | ⁹⁸Sr | ¹⁰⁰Rb > [ 0.15 % , β-2n , 3,807.0 keV ] > ⁹⁸Sr | 92.129'400 | % | ¹⁰⁰Ru | 7.062'688 | % | ⁹⁹Ru | 0.000'890 | % | ⁹⁷Mo | 0.000'000 | % | ⁹⁶Ru | ? | % | ⁹⁸Ru | ||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_101_u | Unstable | ¹⁰¹Rb | Boson | 37 | p | 64 | n | 3/2 | 1 | 100.953'196'445'0 | u | ~ 0 | % | ~ 0 | -43.597'231'000'0 | MeV | 8.216'371'000'0 | MeV | - | - | 1.01E-9 | year | 32.000 | milli-seconds ( x⁻³ ) | 72.000'000 | % | β- | 11,810.000 | keV | ¹⁰¹Sr | ¹⁰¹Rb > [ 72 % , β- , 11,810.0 keV ] > ¹⁰¹Sr | β-n | 8,551.000 | keV | ¹⁰⁰Sr | ¹⁰¹Rb > [ , β-n , 8,551.0 keV ] > ¹⁰⁰Sr | 69.148'800 | % | ¹⁰¹Ru | 30.501'000 | % | ¹⁰⁰Ru | 0.484'755 | % | ⁹⁹Ru | ? | % | ⁹⁸Ru | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Isotope_037_rb_102_u | Unstable | ¹⁰²Rb | Fermion | 37 | p | 65 | n | ? | 0 | 101.958'870'000'0 | u | ~ 0 | % | ~ 0 | -38.312'000'000'0 | MeV | 8.163'000'000'0 | MeV | - | - | 1.17E-9 | year | 37.000 | milli-seconds ( x⁻³ ) | 82.000'000 | % | β- | 14,765.000 | keV | ¹⁰²Sr | ¹⁰²Rb > [ 82 % , β- , 14,765.0 keV ] > ¹⁰²Sr | β-n | 9,024.000 | keV | ¹⁰¹Sr | ¹⁰²Rb > [ , β-n , 9,024.0 keV ] > ¹⁰¹Sr | 73.226'000 | % | ¹⁰²Ru | 25.483'920 | % | ¹⁰¹Ru | 0.852'044 | % | ¹⁰⁰Ru | 0.003'925 | % | ⁹⁹Ru |
