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Periodic Table of Elements

Pt - Platinum

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Nuclides / Isotopes

Nuc- lide	Atomic Mass	NN	Abun %	Spin	Half Life	DM	DT	BR %	Decay Energy (MeV)
Pt168	167.988	90	Syn	0+	2ms	α	Os164	<=100	6.991
Pt169	168.986	91	Syn		5ms	α	Os165	<=100	6.840
Pt170	169.982	92	Syn	0+	6ms	α	Os166		6.704
Pt171	170.981	93	Syn		25ms	α	Os167	~99	6.610
					25ms	ε	Ir171	~1	8.600
Pt172	171.9774	94	Syn	0+	0.096s	α	Os168	94	6.465
					0.096s	ε	Ir172	6	6.200
Pt173	172.976	95	Syn		342ms	α	Os169	84	6.350
					342ms	ε	Ir173	16	8.200
Pt174	173.9728	96	Syn	0+	0.9s	α	Os170	83	6.184
					0.9s	ε	Ir174	17	5.600
Pt175	174.972	97	Syn		2.52s	α	Os171	64	6.179
					2.52s	ε	Ir175	36	7.600
Pt176	175.969	98	Syn	0+	6.33s	ε	Ir176	62	5.100
					6.33s	α	Os172	38	5.886
Pt177	176.968	99	Syn	5/2-	11s	ε	Ir177	94.4	6.800
					11s	α	Os173	5.6	5.644
Pt178	177.966	100	Syn	0+	21.1s	ε	Ir178	92.3	4.300
					21.1s	α	Os174	7.7	5.574
Pt179	178.965	101	Syn	1/2-	21.2s	ε	Ir179	99.76	5.700
					21.2s	α	Os175	0.24	5.280
Pt180	179.963	102	Syn	0+	52s	α	Os176	~0.3	5.257
					52s	ε	Ir180		3.700
Pt181	180.963	103	Syn	1/2-	51s	α	Os177	~0.06	5.130
					51s	ε	Ir181		5.200
Pt182	181.961	104	Syn	0+	3m	ε	Ir182	99.96	2.850
					3m	α	Os178	0.04	4.943
Pt183	182.962	105	Syn	1/2-	6.5m	α	Os179	~0.0013	4.840
					6.5m	ε	Ir183		4.600
meta state 0.035MeV			Syn	7/2-	43s	α	Os179	<0.0004	4.875
					43s	ε	Ir183		4.635
					43s	IT	Pt183		0.035
Pt184	183.96	106	Syn	0+	17.3m	α	Os180	~0	4.590
					17.3m	ε	Ir184		2.300
meta state 1.839MeV			Syn	8-	1.01ms	IT			1.839
Pt185	184.961	107	Syn	9/2+	70.9m	α	Os181		4.540
					70.9m	ε	Ir185		3.800
meta state 0.103MeV			Syn	1/2-	33m	ε	Ir185	>98	3.903
					33m	IT	Pt185	<2	0.103
					33m	α	Os181		4.643
Pt186	185.9594	108	Syn	0+	2.2h	α	Os182	~0.0001	4.324
					2.2h	ε	Ir186		1.380
Pt187	186.961	109	Syn	3/2-	2.35h	ε	Ir187		3.110
Pt188	187.9594	110	Syn	0+	10.2d	α	Os184	0.00002	4.007
					10.2d	ε	Ir188		0.507
Pt189	188.9608	111	Syn	3/2-	10.87h	ε	Ir189		1.971
Pt190	189.9599	112	0.01	0+	6.5E¹¹y	α	Os186		3.249
Pt191	190.9617	113	Syn	3/2-	2.802d	ε	Ir191		1.019
Pt192	191.961	114	0.79	0+	Stable
Pt193	192.963	115	Syn	1/2-	50y	ε	Ir193		0.057
meta state 0.149MeV			Syn	13/2+	4.33d	IT			0.150
Pt194	193.9627	116	32.9	0+	Stable
Pt195	194.9648	117	33.8	1/2-	Stable
meta state 0.259MeV			Syn	13/2+	4.02d	IT			0.259
Pt196	195.9649	118	25.3	0+	Stable
Pt197	196.9673	119	Syn	1/2-	19.8915h	β^-	Au197		0.719
meta state 0.399MeV			Syn	13/2+	95.41m	IT		96.7	0.400
					95.41m	β^-	Au197	3.3	1.119
Pt198	197.9679	120	7.2	0+	Stable
Pt199	198.9706	121	Syn	5/2-	30.8m	β^-	Au199		1.702
meta state 0.424MeV			Syn	13/2+	13.6s	IT			0.424
Pt200	199.9714	122	Syn	0+	12.5h	β^-	Au200		0.660
Pt201	200.9745	123	Syn	5/2-	2.5m	β^-	Au201		2.660
Pt202		124	Syn	0+	44h

Nuclide	Potential Parent Nuclides
Pt168	None known
Pt169	None known
Pt170	None known
Pt171	Au172 (Syn) Hg175 (Syn)
Pt172	Hg176 (Syn)
Pt173	Hg177 (Syn)
Pt174	Hg178 (Syn)
Pt175	Au175 (Syn) Hg179 (Syn)
Pt176	Au176 (Syn) Hg180 (Syn)
Pt177	Au177 (Syn)
Pt178	Au178 (Syn) Hg179 (Syn) Hg182 (Syn)
Pt179	Au179 (Syn) Hg183 (Syn)
Pt180	Au180 (Syn) Hg184 (Syn)
Pt181	Au181 (Syn) Hg185 (Syn) Hg185m (Syn)
Pt182	Au182 (Syn) Hg183 (Syn) Hg186 (Syn)
Pt183	Au183 (Syn) Hg187 (Syn) Hg187m (Syn) Pt183m (Syn)
meta state 0.035MeV	None known
Pt184	Au184 (Syn) Au184m (Syn) Hg188 (Syn)
meta state 1.839MeV	None known
Pt185	Au185 (Syn) Au185m (Syn) Hg189 (Syn) Hg189m (Syn) Pt185m (Syn)
meta state 0.103MeV	None known
Pt186	Au186 (Syn) Hg190 (Syn)
Pt187	Au187 (Syn)
Pt188	Au188 (Syn)
Pt189	Au189 (Syn) Au189m (Syn)
Pt190	Au190 (Syn)
Pt191	Au191 (Syn)
Pt192	Au192 (Syn) Ir192 (Syn) Ir192m (Syn)
Pt193	Au193 (Syn) Au193m (Syn)
meta state 0.149MeV	None known
Pt194	Au194 (Syn) Ir194 (Syn) Ir194m1 (Syn)
Pt195	Au195 (Syn) Ir195 (Syn) Ir195m (Syn)
meta state 0.259MeV	None known
Pt196	Au196 (Syn) Ir196 (Syn) Ir196m (Syn)
Pt197	Ir197 (Syn) Ir197m (Syn)
meta state 0.399MeV	None known
Pt198	Ir198 (Syn)
Pt199	None known
meta state 0.424MeV	None known
Pt200	None known
Pt201	None known
Pt202	None known
Key: NN = Number of Neutrons Abun % = Natural Abundance (as a percentage) Syn = Synthetic Nuclide (does not occur in nature) DM = Decay Mode α = Alpha emission β^- = Beta emission β^- β^- = Double beta decay β⁺ = Positron emission ε = Electron Capture IT = Isomeric Transition N = Neutron emission P = Proton emission SF = Spontaneous Fission DT = Decays To BR % = Branch Ratio (as a percentage)

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References

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Periodic Table of Elements

Pt - Platinum

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