78 – Platinum, Pt

PERIODIC TABLE

Spectrograph

Elemental Tile

Platinum

Platinum is a dense, malleable, ductile, highly unreactive, precious, grey-white transition metal. It has six naturally occurring isotopes and is one of the rarer elements in the Earth’s crust with an average abundance of approximately 5 μg/kg. It occurs in some nickel and copper ores and due to its scarcity in the Earth’s crust, only a few hundred tonnes are produced annually.

1735 by Antonio de Ulloa, South America.

DISCOVERY

Spanish 'platina' meaning 'silver'.

ETYMOLOGY

Platinum

Element

Pt

Symbol

78 Atomic Number

Transition Metal

Classification

7440-06-4

CAS Number

Grey

Elemental Colour

-

Refractive Index

0.380 Poisson Ratio

9.250 cm³

Molar Volume

392.00M Pa, 3.868'7k Atm

3.868'7k Atm

Brinell Hardness

3.50 Mohs Hardness

549.00M Pa, 5.418'2k Atm

5.418'2k Atm

Vickers Hardness

2,680 m/s, Mach 7.813'4

2,680 m/s

Speed of Sound

230.00G Pa, 2.269'9M Atm

2.269'9M Atm

Bulk Modulus

61.00G Pa, 602.023'2k Atm

602.023'2k Atm

Shear Modulus

168.00G Pa, 1.658'0M Atm

1.658'0M Atm

Young Modulus

Allotropes

NONE

2,041.45 K, 1,768.30 °C

1,768.30 °C

Melting Point

4,098.15 K, 3,825.00 °C

3,825.00 °C

Boiling Point

-

Automatic Ignition

-

Flashpoint

-

Critical Temperature

-

Critical Pressure

72.000'000 W/(m K)

Thermal Conductivity

0.000'008'8 K^-1

Thermal Expansion

133.00 J/(kg K)

Specific Heat

20.000 kJ/mol

Heat Fusion

490.000 kJ/mol

Heat Vaporisation

-

Heat Combustion

-

Curie Point

-

Neel Point

-

Adiabatic Index

Solid

Phase

Conductor

Electrical Type

9.40M S/m

Conductivity

110.00n Ω.m

Resistivity

-

Superconducting Point

Paramagnetic

Magnetic Type

0.000'000'012'2

Mass Susceptibility

0.000'000'002'380'00

Molar Susceptibility

0.000'257'300'00

Volume Susceptibility

Material Composition

0.000'000'5 %

Universe

0.000'068 %

Meteorites

0.000'000'9 %

Sun

0.000'003'7 %

Earth Crust

-

Oceans

-

Humans

195.077'807'9

Atomic Weight

174 pm

Atomic Radius

123 pm

Covalent Radius Single Bond

112 pm

Covalent Radius Double Bond

110 pm

Covalent Radius Triple Bond

209 pm

Van der Waals Radius

[Xe]6s¹4f¹⁴5d⁹

Electron Configuration

Cubic, Face-centred

Crystal Structure

21.090'00 g/cm³

Density as Solid

19.770'00 g/cm³

Density as Liquid

-

Density as Gas

Fm_3m

Space Group Name

225 Space Group Number

π/2, π/2 & π/2

Lattice Angles

392.42, 392.42 & 392.42 pm

Lattice Constants

6 Valence

2.28 Electronegativity

205.04 kJ/mol

Electron Affinity

Ionisation Energy

Stable

Half Life

Stable

Lifetime

5d⁹ = 5, 2, +1, -1/2

Quantum Numbers

11.710'00 b σ_s

Neutron Cross Section

10.300'00 b σ_a

Neutron Mass Absorption

Stable Isotopes

Unstable Isotopes

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 Mode	A02 Decay Energy		A02 Decay Daughter	A02 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
Isotope_078_pt_166_u	Unstable	¹⁶⁶Pt	Boson	78	p	88	n	0	1	165.994'855'000'0	u	~ 0	%	~ 0	-4.792'000'000'0	MeV	7.733'000'000'0	MeV	-		-		9.51E-12	year	300.000	micro-seconds ( x⁻⁶ )	100.000'000	%	α	7,285.800	keV	¹⁶²Os	¹⁶⁶Pt > [ 100 % , α , 7,285.8 keV ] > ¹⁶²Os						?	%	¹⁴²Nd	?	%	¹⁵⁰Sm	?	%	¹⁵⁴Gd
Isotope_078_pt_167_u	Unstable	¹⁶⁷Pt	Fermion	78	p	89	n	7/2	-1	166.992'979'000'0	u	~ 0	%	~ 0	-6.540'000'000'0	MeV	7.745'000'000'0	MeV	-		-		2.44E-11	year	770.000	micro-seconds ( x⁻⁶ )	100.000'000	%	α	7,159.800	keV	¹⁶³Os	¹⁶⁷Pt > [ 100 % , α , 7,159.8 keV ] > ¹⁶³Os						53.132'851	%	¹⁵¹Eu	19.032'616	%	¹⁴³Nd	?	%	¹⁵⁹Tb	?	%	¹⁴²Nd	?	%	¹⁵⁵Gd	?	%	¹⁵⁴Gd	?	%	¹⁶³Dy	?	%	¹⁵⁰Sm	?	%	¹⁵⁸Gd	?	%	¹⁶²Dy
Isotope_078_pt_168_u	Unstable	¹⁶⁸Pt	Boson	78	p	90	n	0	1	167.988'150'742'0	u	~ 0	%	~ 0	-11.037'512'000'0	MeV	7.773'784'000'0	MeV	-		-		6.34E-11	year	2.000	milli-seconds ( x⁻³ )	100.000'000	%	α	6,997.230	keV	¹⁶⁴Os	¹⁶⁸Pt > [ 100 % , α , 6,997.23 keV ] > ¹⁶⁴Os	β+	6,682.000	keV	¹⁶⁸Ir	¹⁶⁸Pt > [ , β+ , 6,682.0 keV ] > ¹⁶⁸Ir	7.277'794	%	¹⁴⁰Ce	?	%	¹⁴³Nd	?	%	¹⁵¹Eu	?	%	¹⁶⁰Dy	?	%	¹⁵²Sm	?	%	¹⁵⁶Gd
Isotope_078_pt_169_u	Unstable	¹⁶⁹Pt	Fermion	78	p	91	n	3/2	-1	168.986'715'000'0	u	~ 0	%	~ 0	-12.375'000'000'0	MeV	7.783'000'000'0	MeV	-		-		1.17E-10	year	3.700	milli-seconds ( x⁻³ )	99.000'000	%	α	6,846.200	keV	¹⁶⁵Os	¹⁶⁹Pt > [ 99 % , α , 6,846.2 keV ] > ¹⁶⁵Os	β+	8,684.000	keV	¹⁶⁹Ir	¹⁶⁹Pt > [ , β+ , 8,684.0 keV ] > ¹⁶⁹Ir	2.895'920	%	¹⁴⁵Nd	0.000'263	%	¹⁴⁰Ce	0.000'000	%	¹⁴¹Pr	?	%	¹⁶⁹Tm	?	%	¹⁶⁵Ho	?	%	¹⁵⁷Gd	?	%	¹⁵³Eu	?	%	¹⁶¹Dy	?	%	¹⁵²Sm
Isotope_078_pt_170_u	Unstable	¹⁷⁰Pt	Boson	78	p	92	n	0	1	169.982'495'289'0	u	~ 0	%	~ 0	-16.305'533'000'0	MeV	7.808'273'000'0	MeV	-		-		4.37E-10	year	13.800	milli-seconds ( x⁻³ )	98.000'000	%	α	6,707.950	keV	¹⁶⁶Os	¹⁷⁰Pt > [ 98 % , α , 6,707.95 keV ] > ¹⁶⁶Os	β+	5,992.000	keV	¹⁷⁰Ir	¹⁷⁰Pt > [ , β+ , 5,992.0 keV ] > ¹⁷⁰Ir	14.519'370	%	¹⁴²Nd	1.732'944	%	¹⁷⁰Yb	0.180'559	%	¹⁶⁶Er	?	%	¹⁵⁴Gd	?	%	¹⁵⁰Sm	?	%	¹⁵⁸Gd	?	%	¹⁶²Dy
Isotope_078_pt_171_u	Unstable	¹⁷¹Pt	Fermion	78	p	93	n	3/2	-1	170.981'244'542'0	u	~ 0	%	~ 0	-17.470'596'000'0	MeV	7.816'624'000'0	MeV	-		-		1.39E-9	year	44.000	milli-seconds ( x⁻³ )	98.000'000	%	α	6,607.400	keV	¹⁶⁷Os	¹⁷¹Pt > [ 98 % , α , 6,607.4 keV ] > ¹⁶⁷Os	β+	7,937.400	keV	¹⁷¹Ir	¹⁷¹Pt > [ , β+ , 7,937.4 keV ] > ¹⁷¹Ir	92.738'200	%	¹⁶³Dy	4.905'739	%	¹⁵⁹Tb	1.669'631	%	¹⁵¹Eu	0.598'058	%	¹⁴³Nd	0.279'080	%	¹⁵⁵Gd	?	%	¹⁷¹Yb	?	%	¹⁶⁷Er
Isotope_078_pt_172_u	Unstable	¹⁷²Pt	Boson	78	p	94	n	0	1	171.977'347'128'0	u	~ 0	%	~ 0	-21.101'014'000'0	MeV	7.839'212'000'0	MeV	-		-		3.12E-9	year	98.400	milli-seconds ( x⁻³ )	77.000'000	%	α	6,464.750	keV	¹⁶⁸Os	¹⁷²Pt > [ 77 % , α , 6,464.75 keV ] > ¹⁶⁸Os	β+	5,397.000	keV	¹⁷²Ir	¹⁷²Pt > [ , β+ , 5,397.0 keV ] > ¹⁷²Ir	1.423'704	%	¹⁶⁰Dy	0.000'093	%	¹⁴⁰Ce	?	%	¹⁷²Yb	?	%	¹⁵²Sm	?	%	¹⁵⁶Gd	?	%	¹⁶⁸Er	?	%	¹⁶⁴Dy
Isotope_078_pt_173_u	Unstable	¹⁷³Pt	Fermion	78	p	95	n	5/2	-1	172.976'444'754'0	u	~ 0	%	~ 0	-21.941'570'000'0	MeV	7.845'413'000'0	MeV	-		-		1.16E-8	year	365.000	milli-seconds ( x⁻³ )	84.000'000	%	α	6,354.900	keV	¹⁶⁹Os	¹⁷³Pt > [ 84 % , α , 6,354.9 keV ] > ¹⁶⁹Os	β+	7,308.200	keV	¹⁷³Ir	¹⁷³Pt > [ , β+ , 7,308.2 keV ] > ¹⁷³Ir	75.935'726	%	¹⁶⁹Tm	14.880'000	%	¹⁷³Yb	9.243'794	%	¹⁶⁵Ho	0.018'480	%	¹⁶¹Dy	0.000'024	%	¹⁵⁷Gd	0.000'000	%	¹⁵³Eu	0.000'000	%	¹⁴⁵Nd	0.000'000	%	¹⁴¹Pr
Isotope_078_pt_174_u	Unstable	¹⁷⁴Pt	Boson	78	p	96	n	0	1	173.972'818'767'0	u	~ 0	%	~ 0	-25.319'155'000'0	MeV	7.866'122'000'0	MeV	-		-		2.82E-8	year	889.000	milli-seconds ( x⁻³ )	76.000'000	%	α	6,183.710	keV	¹⁷⁰Os	¹⁷⁴Pt > [ 76 % , α , 6,183.71 keV ] > ¹⁷⁰Os	β+	4,527.400	keV	¹⁷⁴Ir	¹⁷⁴Pt > [ , β+ , 4,527.4 keV ] > ¹⁷⁴Ir	69.464'000	%	¹⁷⁰Dy	7.237'586	%	¹⁶⁶Er	0.000'000	%	¹⁴²Nd	?	%	¹⁵⁴Gd	?	%	¹⁷⁴Yb	?	%	¹⁵⁰Sm	?	%	¹⁵⁸Gd	?	%	¹⁶²Dy
Isotope_078_pt_175_u	Unstable	¹⁷⁵Pt	Fermion	78	p	97	n	5/2	-1	174.972'420'552'0	u	~ 0	%	~ 0	-25.690'090'000'0	MeV	7.869'415'000'0	MeV	-		-		7.99E-8	year	2.520	seconds ( x⁰ )	64.000'000	%	α	6,178.110	keV	¹⁷¹Os	¹⁷⁵Pt > [ 64 % , α , 6,178.11 keV ] > ¹⁷¹Os	β+	6,716.300	keV	¹⁷⁵Ir	¹⁷⁵Pt > [ , β+ , 6,716.3 keV ] > ¹⁷⁵Ir	62.848'000	%	¹⁷¹Yb	1.151'539	%	¹⁶⁷Er	0.000'461	%	¹⁶³Dy	0.000'000	%	¹⁵⁹Tb	?	%	¹⁷⁵Lu
Isotope_078_pt_176_u	Unstable	¹⁷⁶Pt	Boson	78	p	98	n	0	1	175.968'944'622'0	u	~ 0	%	~ 0	-28.927'898'000'0	MeV	7.888'958'000'0	MeV	-		-		2.01E-7	year	6.330	seconds ( x⁰ )	62.000'000	%	β+	3,910.900	keV	¹⁷⁶Ir	¹⁷⁶Pt > [ 62 % , β+ , 3,910.9 keV ] > ¹⁷⁶Ir	α	5,885.240	keV	¹⁷²Os	¹⁷⁶Pt > [ , α , 5,885.24 keV ] > ¹⁷²Os	60.078'000	%	¹⁷⁶Hf	39.504'000	%	¹⁷²Yb	?	%	¹⁶⁸Er	?	%	¹⁶⁴Dy	?	%	¹⁶⁰Dy
Isotope_078_pt_177_u	Unstable	¹⁷⁷Pt	Fermion	78	p	99	n	5/2	-1	176.968'469'481'0	u	~ 0	%	~ 0	-29.370'489'000'0	MeV	7.892'489'000'0	MeV	-		-		3.36E-7	year	10.600	seconds ( x⁰ )	64.300'000	%	β+	5,654.700	keV	¹⁷⁷Ir	¹⁷⁷Pt > [ 64.3 % , β+ , 5,654.7 keV ] > ¹⁷⁷Ir	α	5,642.820	keV	¹⁷³Os	¹⁷⁷Pt > [ , α , 5,642.82 keV ] > ¹⁷³Os	94.300'000	%	¹⁷⁷Hf	5.756'580	%	¹⁷³Yb	0.022'800	%	¹⁶⁹Tm
Isotope_078_pt_178_u	Unstable	¹⁷⁸Pt	Boson	78	p	100	n	0	1	177.965'648'724'0	u	~ 0	%	~ 0	-31.998'007'000'0	MeV	7.908'255'000'0	MeV	-		-		6.69E-7	year	21.100	seconds ( x⁰ )	92.300'000	%	β+	3,231.700	keV	¹⁷⁸Ir	¹⁷⁸Pt > [ 92.3 % , β+ , 3,231.7 keV ] > ¹⁷⁸Ir	α	5,573.380	keV	¹⁷⁴Os	¹⁷⁸Pt > [ , α , 5,573.38 keV ] > ¹⁷⁴Os	92.300'000	%	¹⁷⁸Hf	7.701'848	%	¹⁷⁰Yb	0.000'018	%	¹⁶⁶Er	?	%	¹⁷⁴Yb
Isotope_078_pt_179_u	Unstable	¹⁷⁹Pt	Fermion	78	p	101	n	1/2	-1	177.965'648'724'0	u	~ 0	%	~ 0	-32.263'781'000'0	MeV	7.910'651'000'0	MeV	-		-		6.72E-7	year	21.200	seconds ( x⁰ )	100.000'000	%	β+	4,791.400	keV	¹⁷⁹Ir	¹⁷⁹Pt > [ 100 % , β+ , 4,791.4 keV ] > ¹⁷⁹Ir	α	5,416.000	keV	¹⁷⁵Os	¹⁷⁹Pt > [ , α , 5,416.0 keV ] > ¹⁷⁵Os	100.000'000	%	¹⁷⁹Hf	0.240'000	%	¹⁷⁵Lu
Isotope_078_pt_180_u	Unstable	¹⁸⁰Pt	Boson	78	p	102	n	0	1	179.963'031'477'0	u	~ 0	%	~ 0	-34.435'958'000'0	MeV	7.923'611'000'0	MeV	-		-		1.65E-6	year	52.020	seconds ( x⁰ )	100.000'000	%	β+	2,519.400	keV	¹⁸⁰Ir	¹⁸⁰Pt > [ 100 % , β+ , 2,519.4 keV ] > ¹⁸⁰Ir	α	5,237.100	keV	¹⁷⁶Os	¹⁸⁰Pt > [ , α , 5,237.1 keV ] > ¹⁷⁶Os	0.300'000	%	¹⁷⁶Hf	?	%	¹⁸⁰Hf
Isotope_078_pt_181_u	Unstable	¹⁸¹Pt	Fermion	78	p	103	n	1/2	-1	180.963'097'285'0	u	~ 0	%	~ 0	-34.374'658'000'0	MeV	7.924'088'000'0	MeV	-		-		1.65E-6	year	52.020	seconds ( x⁰ )	100.000'000	%	β+	4,074.900	keV	¹⁸¹Ir	¹⁸¹Pt > [ 100 % , β+ , 4,074.9 keV ] > ¹⁸¹Ir	α	5,149.960	keV	¹⁷⁷Os	¹⁸¹Pt > [ , α , 5,149.96 keV ] > ¹⁷⁷Os	100.000'000	%	¹⁸¹Ta	0.074'000	%	¹⁷⁷Hf
Isotope_078_pt_182_u	Unstable	¹⁸²Pt	Boson	78	p	104	n	0	1	181.961'170'656'0	u	~ 0	%	~ 0	-36.169'301'000'0	MeV	7.934'758'000'0	MeV	-		-		4.12E-6	year	130.020	seconds ( x⁰ )	100.000'000	%	β+	1,860.200	keV	¹⁸²Ir	¹⁸²Pt > [ 100 % , β+ , 1,860.2 keV ] > ¹⁸²Ir	α	4,951.970	keV	¹⁷⁸Os	¹⁸²Pt > [ , α , 4,951.97 keV ] > ¹⁷⁸Os	0.038'000	%	¹⁷⁸Hf
Isotope_078_pt_183_u	Unstable	¹⁸³Pt	Fermion	78	p	105	n	1/2	-1	182.961'596'703'0	u	~ 0	%	~ 0	-35.772'441'000'0	MeV	7.933'336'000'0	MeV	0.521'000'000'0	nm	-		1.24E-5	year	390.000	seconds ( x⁰ )	100.000'000	%	β+	3,402.600	keV	¹⁸³Ir	¹⁸³Pt > [ 100 % , β+ , 3,402.6 keV ] > ¹⁸³Ir	α	4,822.750	keV	¹⁷⁹Os	¹⁸³Pt > [ , α , 4,822.75 keV ] > ¹⁷⁹Os	0.059'600	%	¹⁷⁹Hf
Isotope_078_pt_184_u	Unstable	¹⁸⁴Pt	Boson	78	p	106	n	0	1	183.959'922'251'0	u	~ 0	%	~ 0	-37.332'183'000'0	MeV	7.942'562'000'0	MeV	-		-		3.30E-5	year	1.040	kilo-seconds ( x³ )	100.000'000	%	β+	1,256.500	keV	¹⁸⁴Ir	¹⁸⁴Pt > [ 100 % , β+ , 1,256.5 keV ] > ¹⁸⁴Ir	α	4,601.760	keV	¹⁸⁰Os	¹⁸⁴Pt > [ , α , 4,601.76 keV ] > ¹⁸⁰Os	?	%	¹⁸⁰Hf	?	%	¹⁷⁶Hf
Isotope_078_pt_185_u	Unstable	¹⁸⁵Pt	Fermion	78	p	107	n	9/2	1	184.960'619'000'0	u	~ 0	%	~ 0	-36.683'166'000'0	MeV	7.939'750'000'0	MeV	-0.830'000'000'0	nm	4.300'000'000'0	b	1.35E-4	year	4.250	kilo-seconds ( x³ )	100.000'000	%	β+	2,630.200	keV	¹⁸⁵Ir	¹⁸⁵Pt > [ 100 % , β+ , 2,630.2 keV ] > ¹⁸⁵Ir	α	4,444.900	keV	¹⁸¹Os	¹⁸⁵Pt > [ , α , 4,444.9 keV ] > ¹⁸¹Os	100.000'000	%	¹⁸⁵Re	0.005'000	%	¹⁸¹Ta
Isotope_078_pt_186_u	Unstable	¹⁸⁶Pt	Boson	78	p	108	n	0	1	185.959'350'813'0	u	~ 0	%	~ 0	-37.864'474'000'0	MeV	7.946'809'000'0	MeV	-		-		2.37E-4	year	7.490	kilo-seconds ( x³ )	100.000'000	%	β+	286.300	keV	¹⁸⁶Ir	¹⁸⁶Pt > [ 100 % , β+ , 286.3 keV ] > ¹⁸⁶Ir	α	4,319.700	keV	¹⁸²Os	¹⁸⁶Pt > [ , α , 4,319.7 keV ] > ¹⁸²Os	?	%	¹⁷⁸Hf
Isotope_078_pt_187_u	Unstable	¹⁸⁷Pt	Fermion	78	p	109	n	3/2	-1	186.960'587'000'0	u	~ 0	%	~ 0	-36.712'973'000'0	MeV	7.941'317'000'0	MeV	-0.397'000'000'0	nm	-1.130'000'000'0	b	2.68E-4	year	8.460	kilo-seconds ( x³ )	100.000'000	%	β+	1,980.600	keV	¹⁸⁷Ir	¹⁸⁷Pt > [ 100 % , β+ , 1,980.6 keV ] > ¹⁸⁷Ir						100.000'000	%	¹⁸⁷Os
Isotope_078_pt_188_u	Unstable	¹⁸⁸Pt	Boson	78	p	110	n	0	1	187.959'395'391'0	u	~ 0	%	~ 0	-37.822'950'000'0	MeV	7.947'912'000'0	MeV	-		-		2.79E-2	year	881.280	kilo-seconds ( x³ )	100.000'000	%	ϵ	505.120	keV	¹⁸⁸Ir	¹⁸⁸Pt > [ 100 % , ϵ , 505.12 keV ] > ¹⁸⁸Ir	α	4,008.280	keV	¹⁸⁴Os	¹⁸⁸Pt > [ , α , 4,008.28 keV ] > ¹⁸⁴Os	100.000'000	%	¹⁸⁸Os	?	%	¹⁸⁰Hf	?	%	¹⁷⁶Hf
Isotope_078_pt_189_u	Unstable	¹⁸⁹Pt	Fermion	78	p	111	n	3/2	-1	188.960'833'686'0	u	~ 0	%	~ 0	-36.483'186'000'0	MeV	7.941'477'000'0	MeV	0.434'000'000'0	nm	-0.650'000'000'0	b	1.24E-3	year	39.130	kilo-seconds ( x³ )	100.000'000	%	β+	947.700	keV	¹⁸⁹Ir	¹⁸⁹Pt > [ 100 % , β+ , 947.7 keV ] > ¹⁸⁹Ir						100.000'000	%	¹⁸⁹Os
Isotope_078_pt_190_u	Unstable	¹⁹⁰Pt	Boson	78	p	112	n	0	1	189.959'931'655'0	u	0.014'000	%	0.026'594'390'4	-37.323'422'000'0	MeV	7.946'582'000'0	MeV	-		-		6.50E+11	years	20.516	exa-seconds ( x¹⁸ )	100.000'000	%	α	3,251.140	keV	¹⁸⁶Os	¹⁹⁰Pt > [ 100 % , α , 3,251.14 keV ] > ¹⁸⁶Os	2β+	-661.500	keV	¹⁹⁰Os	¹⁹⁰Pt > [ , 2β+ , -661.5 keV ] > ¹⁹⁰Os	?	%	¹⁹⁰Os	?	%	¹⁷⁸Hf
Isotope_078_pt_191_u	Unstable	¹⁹¹Pt	Fermion	78	p	113	n	3/2	-1	190.961'676'661'0	u	~ 0	%	~ 0	-35.697'960'000'0	MeV	7.938'725'000'0	MeV	-0.500'000'000'0	nm	-0.640'000'000'0	b	7.67E-3	year	242.101	kilo-seconds ( x³ )	100.000'000	%	ϵ	1,008.450	keV	¹⁹¹Ir	¹⁹¹Pt > [ 100 % , ϵ , 1,008.45 keV ] > ¹⁹¹Ir						100.000'000	%	¹⁹¹Ir
Isotope_078_pt_192_s	Stable	¹⁹²Pt	Boson	78	p	114	n	0	1	191.961'038'005'0	u	0.782'000	%	1.501'135'317'2	-36.292'864'000'0	MeV	7.942'514'000'0	MeV	-		-		-
Isotope_078_pt_193_u	Unstable	¹⁹³Pt	Fermion	78	p	115	n	1/2	-1	192.962'987'401'0	u	~ 0	%	~ 0	-34.477'014'000'0	MeV	7.933'773'000'0	MeV	-		-		5.07E+1	years	1.600	giga-seconds ( x⁹ )	100.000'000	%	ϵ	56.794	keV	¹⁹³Ir	¹⁹³Pt > [ 100 % , ϵ , 56.794 keV ] > ¹⁹³Ir						100.000'000	%	¹⁹³Ir
Isotope_078_pt_194_s	Stable	¹⁹⁴Pt	Boson	78	p	116	n	0	1	193.962'680'253'0	u	32.967'000	%	63.943'676'799'0	-34.763'121'000'0	MeV	7.935'957'000'0	MeV	-		-		-
Isotope_078_pt_195_s	Stable	¹⁹⁵Pt	Fermion	78	p	117	n	1/2	-1	194.964'791'134'0	u	33.832'000	%	65.960'488'136'5	-32.796'847'000'0	MeV	7.926'567'000'0	MeV	0.609'520'000'0	nm	-		-
Isotope_078_pt_196_s	Stable	¹⁹⁶Pt	Boson	78	p	118	n	0	1	195.964'951'521'0	u	25.242'000	%	49.465'473'062'9	-32.647'448'000'0	MeV	7.926'544'000'0	MeV	-		-		-
Isotope_078_pt_197_u	Unstable	¹⁹⁷Pt	Fermion	78	p	119	n	1/2	-1	196.967'340'182'0	u	~ 0	%	~ 0	-30.422'425'000'0	MeV	7.915'984'000'0	MeV	0.510'000'000'0	nm	-		2.27E-3	year	71.609	kilo-seconds ( x³ )	100.000'000	%	β-	718.666	keV	¹⁹⁷Au	¹⁹⁷Pt > [ 100 % , β- , 718.666 keV ] > ¹⁹⁷Au						100.000'000	%	¹⁹⁷Au
Isotope_078_pt_198_s	Stable	¹⁹⁸Pt	Boson	78	p	120	n	0	1	197.967'892'790'0	u	7.163'000	%	14.180'440'160'5	-29.907'673'000'0	MeV	7.914'169'000'0	MeV	-		-		-				?	%	2β-	1,046.770	keV	¹⁹⁸Hg	¹⁹⁸Pt > [ ? % , 2β- , 1,046.77 keV ] > ¹⁹⁸Hg	α	100.090	keV	¹⁹⁴Os	¹⁹⁸Pt > [ , α , 100.09 keV ] > ¹⁹⁴Os	?	%	¹⁹⁴Pt	?	%	¹⁹⁸Hg
Isotope_078_pt_199_u	Unstable	¹⁹⁹Pt	Fermion	78	p	121	n	5/2	-1	198.970'593'094'0	u	~ 0	%	~ 0	-27.392'356'000'0	MeV	7.902'319'000'0	MeV	-		-		5.86E-5	year	1.850	kilo-seconds ( x³ )	100.000'000	%	β-	1,702.680	keV	¹⁹⁹Au	¹⁹⁹Pt > [ 100 % , β- , 1,702.68 keV ] > ¹⁹⁹Au						100.000'000	%	¹⁹⁹Hg
Isotope_078_pt_200_u	Unstable	²⁰⁰Pt	Boson	78	p	122	n	0	1	199.971'440'677'0	u	~ 0	%	~ 0	-26.602'838'000'0	MeV	7.899'216'000'0	MeV	-		-		1.43E-3	year	45.014	kilo-seconds ( x³ )	100.000'000	%	β-	666.000	keV	²⁰⁰Au	²⁰⁰Pt > [ 100 % , β- , 666.0 keV ] > ²⁰⁰Au						100.000'000	%	²⁰⁰Hg
Isotope_078_pt_201_u	Unstable	²⁰¹Pt	Fermion	78	p	123	n	5/2	-1	200.974'512'868'0	u	~ 0	%	~ 0	-23.741'111'000'0	MeV	7.885'835'000'0	MeV	-		-		4.75E-6	year	150.000	seconds ( x⁰ )	100.000'000	%	β-	2,660.000	keV	²⁰¹Au	²⁰¹Pt > [ 100 % , β- , 2,660.0 keV ] > ²⁰¹Au						100.000'000	%	²⁰¹Hg
Isotope_078_pt_202_u	Unstable	²⁰²Pt	Boson	78	p	124	n	0	1	201.975'740'000'0	u	~ 0	%	~ 0	-22.598'000'000'0	MeV	7.881'000'000'0	MeV	-		-		5.07E-3	year	159.840	kilo-seconds ( x³ )	100.000'000	%	β-	1,802.000	keV	²⁰²Au	²⁰²Pt > [ 100 % , β- , 1,802.0 keV ] > ²⁰²Au						100.000'000	%	²⁰²Hg

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