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Periodic Table of Elements

I - Iodine

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Nuclides / Isotopes

Nuc- lide	Atomic Mass	NN	Abun %	Spin	Half Life	DM	DT	BR %	Decay Energy (MeV)
I108	107.943	55	Syn		36ms	α	Sb104	91	4.030
I109	108.938	56	Syn		100us	P	Te108	~100	0.820
I110	109.935	57	Syn		0.65s	ε	Te110	83	11.900
					0.65s	α	Sb106	17	3.580
					0.65s	ε + P	Sb109	11	8.600
					0.65s	ε + α	Sn106	1.1	14.700
I111	110.93	58	Syn	5/2+	2.5s	ε	Te111	99.9	8.500
					2.5s	α	Sb107	~0.1	3.280
I112	111.928	59	Syn		3.42s	α	Sb108	~0.0012	2.990
					3.42s	ε	Te112		10.200
I113	112.9236	60	Syn	5/2+	6.6s	α	Sb109	3.3E^-7	2.710
					6.6s	ε	Te113		7.200
I114	113.922	61	Syn	1+	2.1s	ε	Te114		9.100
					2.1s	ε + P	Sb113		4.300
meta state 0.265MeV			Syn	7	6.2s	ε	Te114	<=100	9.366
					6.2s	IT		<=100	0.266
I115	114.918	62	Syn	5/2+	1.3m	ε	Te115		5.900
I116	115.917	63	Syn	1+	2.91s	ε	Te116		7.750
I117	116.9136	64	Syn	5/2+	2.22m	ε	Te117		4.670
I118	117.9134	65	Syn	2-	13.7m	ε	Te118		7.040
meta state 0.104MeV			Syn	7-	8.5m	ε	Te118	<100	7.144
					8.5m	IT	I118	>0	0.104
I119	118.9102	66	Syn	5/2+	19.1m	ε	Te119		3.510
I120	119.91	67	Syn	2-	81m	ε	Te120		5.615
meta state 0.000MeV			Syn	4 to 8	53m	ε	Te120		5.615
I121	120.9074	68	Syn	5/2+	2.12h	ε	Te121		2.270
I122	121.9076	69	Syn	1+	3.63m	ε	Te122		4.234
I123	122.9056	70	Syn	5/2+	13.27h	ε	Te123		1.242
I124	123.9062	71	Syn	2-	4.1760d	ε	Te124		3.160
I125	124.9046	72	Syn	5/2+	59.408d	ε	Te125		0.186
I126	125.9056	73	Syn	2-	13.11d	ε	Te126	56.3	2.155
					13.11d	β^-	Xe126	43.7	1.258
I127	126.9045	74	100.	5/2+	Stable
I128	127.9058	75	Syn	1+	24.99m	β^-	Xe128	93.1	2.118
					24.99m	ε	Te128	6.9	1.251
I129	128.905	76	Syn	7/2+	1.57E⁷y	β^-	Xe129		0.194
I130	129.9067	77	Syn	5+	12.36h	β^-	Xe130		2.949
meta state 0.040MeV			Syn	2+	9m	IT		84	0.040
					9m	β^-	Xe130	16	2.989
I131	130.9061	78	Syn	7/2+	8.02070d	β^-	Xe131		0.971
I132	131.908	79	Syn	4+	2.295h	β^-	Xe132		3.577
meta state 0.120MeV			Syn	8-	1.387h	IT		86	0.120
					1.387h	β^-	Xe132	14	3.697
I133	132.9078	80	Syn	7/2+	20.8h	β^-	Xe133		1.770
meta state 1.634MeV			Syn	19/2-	9s	IT			1.634
I134	133.9099	81	Syn	4+	52.5m	β^-	Xe134		4.170
meta state 0.316MeV			Syn	8-	3.6m	IT		97.7	0.316
					3.6m	β^-	Xe134	2.3	4.486
I135	134.9101	82	Syn	7/2+	6.57h	β^-	Xe135		2.648
I136	135.9147	83	Syn	1-	83.4s	β^-	Xe136		6.930
meta state 0.640MeV			Syn	6-	46.9s	β^-	Xe136		7.570
I137	136.9179	84	Syn	7/2+	24.5s	β^- + N	Xe136	6.97	1.850
					24.5s	β^-	Xe137		5.880
I138	137.9224	85	Syn	2-	6.49s	β^- + N	Xe137	5.5	2.010
					6.49s	β^-	Xe138		7.820
I139	138.9261	86	Syn	7/2+	2.29s	β^- + N	Xe138	10	3.210
					2.29s	β^-	Xe139		6.806
I140	139.931	87	Syn	4	0.86s	β^- + N	Xe139	9.3	3.340
					0.86s	β^-	Xe140		8.760
I141	140.935	88	Syn		0.43s	β^- + N	Xe140	22	4.400
					0.43s	β^-	Xe141		7.800
I142	141.94	89	Syn		~0.2s	β^-	Xe142
I143	142.944	90	Syn		>150ns
I144	143.95	91	Syn		>150ns

Nuclide	Potential Parent Nuclides
I108	None known
I109	None known
I110	Cs114 (Syn)
I111	Xe111 (Syn)
I112	Xe112 (Syn)
I113	Ba117 (Syn) Cs114 (Syn) Xe113 (Syn)
I114	Cs115 (Syn) Xe114 (Syn)
meta state 0.265MeV	None known
I115	Cs116m1 (Syn) Xe115 (Syn)
I116	Xe116 (Syn)
I117	Cs118 (Syn) Cs118m (Syn) Xe117 (Syn)
I118	I118m (Syn) Xe118 (Syn)
meta state 0.104MeV	None known
I119	Cs120 (Syn) Xe119 (Syn)
I120	Xe120 (Syn)
meta state 0.000MeV	None known
I121	Xe121 (Syn)
I122	Xe122 (Syn)
I123	Xe123 (Syn)
I124	None known
I125	Xe125 (Syn)
I126	None known
I127	Te127 (Syn) Te127m (Syn) Xe127 (Syn)
I128	None known
I129	Te129 (Syn) Te129m (Syn)
I130	None known
meta state 0.040MeV	None known
I131	Te131 (Syn) Te131m (Syn)
I132	Te132 (Syn)
meta state 0.120MeV	None known
I133	Te133 (Syn) Te133m (Syn)
meta state 1.634MeV	None known
I134	Te134 (Syn)
meta state 0.316MeV	None known
I135	Te135 (Syn) Te136 (Syn)
I136	Te136 (Syn) Te137 (Syn)
meta state 0.640MeV	None known
I137	Te137 (Syn) Te138 (Syn)
I138	Te138 (Syn)
I139	None known
I140	None known
I141	None known
I142	None known
I143	None known
I144	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

A list of reference sources used to compile the data provided on our periodic table of elements can be found on the main periodic table page.

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Periodic Table of Elements

I - Iodine

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Nuclides / Isotopes

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References

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