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Periodic Table of Elements

Tm - Thulium

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Nuclides / Isotopes

Nuc- lide	Atomic Mass	NN	Abun %	Spin	Half Life	DM	DT	BR %	Decay Energy (MeV)
Tm146	145.966	77	Syn	10+	235ms	P	Er145		1.128
meta state 0.000MeV			Syn	5-, 6-	72ms	P	Er145		1.128
Tm147	146.961	78	Syn	11/2-	0.56s	ε	Er147	~90	10.700
					0.56s	P	Er146	~10	1.061
meta state 0.000MeV			Syn	1/32+, 3/2+	360us	P	Er146		1.061
Tm148	147.958	79	Syn	10+	0.7s	ε	Er148		12.000
Tm149	148.953	80	Syn	11/2-	0.9s	ε + P	Ho148	0.2	6.900
					0.9s	ε	Er149		9.600
Tm150	149.95	81	Syn	6-	2.2s	ε	Er150		11.100
meta state 0.671MeV			Syn	10+	5.2ms	IT	Tm150		0.672
Tm151	150.945	82	Syn	11/2-	4.17s	ε	Er151		7.400
meta state 0.000MeV			Syn	1/2+	6.6s	ε	Er151		7.400
Tm152	151.944	83	Syn	2-	8s	ε	Er152		8.600
meta state 0.000MeV			Syn	9+	5.2s	ε	Er152		8.600
meta state 2.555MeV			Syn	17+	249ms	IT			2.555
meta state 6.300MeV			Syn		42ns	IT		<=100	6.300
Tm153	152.942	84	Syn	11/2-	1.48s	α	Ho149	91	5.248
					1.48s	ε	Er153	9	6.459
meta state 0.043MeV			Syn	1/2+	2.5s	α	Ho149	95	5.291
					2.5s	ε	Er153	5	6.502
Tm154	153.941	85	Syn	2-	8.1s	ε	Er154	56	8.050
					8.1s	α	Ho150	44	5.090
meta state 0.000MeV			Syn	9+	3.3s	α	Ho150	90	5.090
					3.3s	ε	Er154	10	8.050
					3.3s	IT	Tm154
Tm155	154.9392	86	Syn	11/2-	21.6s	ε	Er155	98.1	5.580
					21.6s	α	Ho151	1.9	4.571
meta state 0.041MeV			Syn	1/2+	45s	ε	Er155	>92	5.621
					45s	α	Ho151	<8	4.612
Tm156	155.939	87	Syn	2-	83.8s	ε	Er156	99.94	7.440
					83.8s	α	Ho152	0.06	4.340
meta state 0.000MeV			Syn		19s	α	Ho152		4.340
Tm157	156.937	88	Syn	1/2+	3.63m	ε	Er157		4.480
Tm158	157.937	89	Syn	2-	3.98m	ε	Er158		6.600
Tm159	158.9348	90	Syn	5/2+	9.13m	ε	Er159		3.850
Tm160	159.935	91	Syn	1-	9.4m	ε	Er160		5.600
meta state 0.070MeV			Syn	5	74.5s	IT		85	0.070
					74.5s	ε	Er160	15	5.670
Tm161	160.9334	92	Syn	7/2+	33m	ε	Er161		3.160
Tm162	161.934	93	Syn	1-	21.7m	ε	Er162		4.810
meta state 0.067MeV			Syn	5+	24.3s	IT		82	0.067
					24.3s	ε	Er162	18	4.877
Tm163	162.9327	94	Syn	1/2+	1.810h	ε	Er163		2.439
Tm164	163.9335	95	Syn	1+	2m	ε	Er164		3.962
meta state 0.000MeV			Syn	6-	5.1m	IT		~80
					5.1m	ε	Er164	~20	3.962
Tm165	164.9324	96	Syn	1/2+	30.06h	ε	Er165		1.592
Tm166	165.9336	97	Syn	2+	7.70h	ε	Er166		3.040
Tm167	166.9329	98	Syn	1/2+	9.25d	ε	Er167		0.748
Tm168	167.9342	99	Syn	3+	93.1d	ε	Er168	99.99	1.679
					93.1d	β^-	Yb168	0.01	0.257
Tm169	168.9342	100	100.	1/2+	Stable
Tm170	169.9358	101	Syn	1-	128.6d	β^-	Yb170	99.87	0.968
					128.6d	ε	Er170	0.13	0.314
Tm171	170.9364	102	Syn	1/2+	1.92y	β^-	Yb171		0.096
Tm172	171.9384	103	Syn	2-	63.6h	β^-	Yb172		1.880
Tm173	172.9396	104	Syn	1/2+	8.24h	β^-	Yb173		1.298
Tm174	173.9422	105	Syn	4-	5.4m	β^-	Yb174		3.080
Tm175	174.9438	106	Syn	1/2+	15.2m	β^-	Yb175		2.390
Tm176	175.947	107	Syn	4+	1.9m	β^-	Yb176		3.880
Tm177	176.949	108	Syn	1/2+	85s	β^-	Yb177		3.200
Tm178		109	Syn
Tm179		110	Syn

Nuclide	Potential Parent Nuclides
Tm146	None known
meta state 0.000MeV	None known
Tm147	None known
meta state 0.000MeV	None known
Tm148	None known
Tm149	None known
Tm150	Tm150m (Syn)
meta state 0.671MeV	None known
Tm151	Lu152 (Syn) Lu155 (Syn) Lu155m (Syn) Lu155m1 (Syn) Yb151 (Syn) Yb151m (Syn)
meta state 0.000MeV	None known
Tm152	Lu156 (Syn) Yb152 (Syn)
meta state 0.000MeV	None known
meta state 2.555MeV	None known
meta state 6.300MeV	None known
Tm153	Lu157 (Syn) Lu157m (Syn) Yb153 (Syn)
meta state 0.043MeV	None known
Tm154	Lu158 (Syn) Tm154m (Syn) Yb154 (Syn)
meta state 0.000MeV	None known
Tm155	Lu159 (Syn) Yb155 (Syn)
meta state 0.041MeV	None known
Tm156	Lu160 (Syn) Yb156 (Syn)
meta state 0.000MeV	None known
Tm157	Yb157 (Syn)
Tm158	Yb158 (Syn)
Tm159	Yb159 (Syn)
Tm160	Yb160 (Syn)
meta state 0.070MeV	None known
Tm161	Yb161 (Syn)
Tm162	Yb162 (Syn)
meta state 0.067MeV	None known
Tm163	Yb163 (Syn)
Tm164	Yb164 (Syn)
meta state 0.000MeV	None known
Tm165	Yb165 (Syn)
Tm166	Yb166 (Syn)
Tm167	Yb167 (Syn)
Tm168	None known
Tm169	Er169 (Syn) Yb169 (Syn)
Tm170	None known
Tm171	Er171 (Syn)
Tm172	Er172 (Syn)
Tm173	Er173 (Syn)
Tm174	Er174 (Syn)
Tm175	None known
Tm176	None known
Tm177	None known
Tm178	None known
Tm179	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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Tm - Thulium

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