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Periodic Table of Elements

Po - Polonium

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Nuclides / Isotopes

Nuc- lide	Atomic Mass	NN	Abun %	Spin	Half Life	DM	DT	BR %	Decay Energy (MeV)
Po190	189.955	106	Syn	0+	2ms	α	Pb186		7.643
Po191	190.995	107	Syn		15.5ms	α	Pb187		7.471
Po192	191.992	108	Syn	0+	0.0332s	α	Pb188	~99	7.320
					0.0332s	ε	Bi192	~1	5.700
Po193	192.991	109	Syn	3/2-	0.42s	α	Pb189	<=100	7.100
Po194	193.988	110	Syn	0+	0.392s	α	Pb190		6.987
Po195	194.988	111	Syn	3/2-	4.64s	α	Pb191	75	6.750
					4.64s	ε	Bi195	25	6.800
meta state 0.230MeV			Syn	13/2+	1.92s	α	Pb191	~90	6.980
					1.92s	ε	Bi195	~10	7.030
					1.92s	IT	Po195	<0.01	0.230
Po196	195.986	112	Syn	0+	5.8s	α	Pb192	~98	6.657
					5.8s	ε	Bi196	~2	4.600
Po197	196.986	113	Syn	3/2-	53.6s	ε	Bi197	56	6.200
					53.6s	α	Pb193	44	6.410
meta state 0.204MeV			Syn	13/2+	25.8s	α	Pb193	84	6.614
					25.8s	ε	Bi197	16	6.614
					25.8s	IT	Po197	0.01	0.204
Po198	197.983	114	Syn	0+	1.77m	α	Pb194	57	6.309
					1.77m	ε	Bi198	43	4.020
Po199	198.984	115	Syn	3/2-	5.48m	ε	Bi199	92.50	5.600
					5.48m	α	Pb195	7.50	6.074
meta state 0.310MeV			Syn	13/2+	4.13m	ε	Bi199	73.50	5.910
					4.13m	α	Pb195	24	6.384
					4.13m	IT		2.50	0.310
Po200	199.982	116	Syn	0+	11.5m	ε	Bi200	88.90	3.350
					11.5m	α	Pb196	11.10	5.982
Po201	200.982	117	Syn	3/2-	15.3m	ε	Bi201	98.40	4.880
					15.3m	α	Pb197	1.60	5.799
meta state 0.424MeV			Syn	13/2+	8.9m	IT		56	0.424
					8.9m	ε	Bi201	41	5.304
					8.9m	α	Pb197	~2.90	6.223
Po202	201.981	118	Syn	0+	44.7m	ε	Bi202	98.08	2.820
					44.7m	α	Pb198	1.92	5.701
Po203	202.9814	119	Syn	5/2-	36.7m	ε	Bi203	99.89	4.230
					36.7m	α	Pb199	0.11	5.496
meta state 0.641MeV			Syn	13/2+	45s	IT		~100	0.641
					45s	α	Pb199	~0.04	6.137
Po204	203.9803	120	Syn	0+	3.53h	ε	Bi204	99.34	2.340
					3.53h	α	Pb200	0.66	5.485
Po205	204.9812	121	Syn	5/2-	1.66h	ε	Bi205	99.96	3.530
					1.66h	α	Pb201	0.04	5.324
Po206	205.9805	122	Syn	0+	8.8d	ε	Bi206	94.55	1.846
					8.8d	α	Pb202	5.45	5.326
Po207	207.9816	123	Syn	5/2-	5.80h	ε	Bi207	99.98	2.909
					5.80h	α	Pb203	0.02	5.216
meta state 1.383MeV			Syn	19/2-	2.8s	IT			1.383
Po208	207.9812	124	Syn	0+	2.898y	α	Pb204		5.215
					2.898y	ε	Bi208		1.401
Po209	208.9824	125	100.	1/2-	102y	α	Pb205	99.52	4.979
					102y	ε	Bi209	0.48	1.893
Po210	209.9829	126	Syn	0+	138.376d	α	Pb206		5.407
Po211	210.9866	127	Syn	9/2+	0.516s	α	Pb207		7.595
meta state 1.462MeV			Syn	25/2+	25.2s	α	Pb207	99.98	9.057
					25.2s	IT	Po211	0.02	1.462
Po212	211.9888	128	Syn	0+	0.299us	α
Po213	212.9928	129	Syn	9/2+	4.2us	α	Pb209		8.537
Po214	213.9952	130	Syn	0+	164.3us	α	Pb210		7.833
meta state 1.415MeV			Syn	0+	99ps	IT		99.86	1.416
					99ps	α	Pb210	0.14	9.248
Po215	214.9994	131	Syn	9/2+	1.781ms	β^-	At215	0.00023	0.721
					1.781ms	α	Pb211		7.526
Po216	216.0019	132	Syn	0+	0.145s	α	Pb212		6.906
Po217		133	Syn		<10s
Po218	218.009	134	Syn	0+	3.10m	α	Pb214	99.98	6.115
					3.10m	β^-	At218	0.02	0.265

Nuclide	Potential Parent Nuclides
Po190	None known
Po191	None known
Po192	None known
Po193	None known
Po194	Rn198 (Syn)
Po195	At195 (Syn) Po195m (Syn) Rn199 (Syn)
meta state 0.230MeV	None known
Po196	Rn200 (Syn)
Po197	At197 (Syn) At197m (Syn) Po197m (Syn) Rn201 (Syn) Rn201m (Syn)
meta state 0.204MeV	None known
Po198	At198 (Syn) At198m (Syn) Rn202 (Syn)
Po199	At199 (Syn) Rn203 (Syn) Rn203m (Syn)
meta state 0.310MeV	None known
Po200	At200 (Syn) At200m (Syn) At200m1 (Syn) Rn204 (Syn)
Po201	At201 (Syn) Rn205 (Syn)
meta state 0.424MeV	None known
Po202	At202 (Syn) At202m (Syn) At202m1 (Syn) Rn206 (Syn)
Po203	At203 (Syn) Rn207 (Syn)
meta state 0.641MeV	None known
Po204	At204 (Syn) Rn208 (Syn)
Po205	At205 (Syn) Rn209 (Syn)
Po206	At206 (Syn) Rn210 (Syn)
Po207	At207 (Syn) Rn211 (Syn)
meta state 1.383MeV	None known
Po208	At208 (Syn) Rn212 (Syn)
Po209	At209 (Syn) Rn213 (Syn)
Po210	At210 (Natural) Bi210 (Syn) Rn214 (Syn) Rn214m (Syn) Rn214m1 (Syn)
Po211	At211 (Syn) Bi211 (Syn) Po211m (Syn) Rn215 (Syn)
meta state 1.462MeV	None known
Po212	At212 (Syn) Bi212 (Syn) Bi212m (Syn) Bi212m1 (Syn) Rn216 (Syn)
Po213	Bi213 (Syn) Rn217 (Syn)
Po214	Bi214 (Syn) Rn218 (Syn)
meta state 1.415MeV	None known
Po215	Bi215 (Syn) Rn219 (Syn)
Po216	At216 (Syn) Bi216 (Syn) Rn220 (Syn)
Po217	Rn221 (Syn)
Po218	Rn222 (Natural)
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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Po - Polonium

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