It's Elemental - Isotopes of the Element Ytterbium

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Most of the isotope data on this site has been obtained from the National Nuclear Data Center. Please visit their site for more information.

Isotopes of the Element Ytterbium with a Known Natural Abundance

Mass Number	Natural Abundance	Half-life

168	0.13%	Stable

170	3.04%	Stable

171	14.28%	Stable

172	21.83%	Stable

173	16.13%	Stable

174	31.83%	Stable

176	12.76%	≥ 1.6×10⁺¹⁷ years

All Known Isotopes of the Element Ytterbium

Mass Number	Half-life	Decay Mode	Branching Percentage

148	≈ 0.25 seconds	Electron Capture	No Data Available

149	≈ 0.6 seconds	Electron Capture	No Data Available

150	≈ 0.7 seconds	Electron Capture	No Data Available

151	1.6 seconds	Electron Capture	100.00

		Electron Capture with delayed Proton Emission	No Data Available

		Electron Capture	~ 100.00

		Electron Capture with delayed Proton Emission	No Data Available

		Isomeric Transition	No Data Available

152	3.04 seconds	Electron Capture	100.00

		Electron Capture with delayed Proton Emission	No Data Available

153	4.2 seconds	Alpha Decay	50.00

		Electron Capture	50.00

154	0.409 seconds	Alpha Decay	92.60

		Electron Capture	7.40

155	1.800 seconds	Alpha Decay	89.00

		Electron Capture	11.00

156	26.1 seconds	Electron Capture	90.00

		Alpha Decay	10.00

157	38.6 seconds	Electron Capture	99.50

		Alpha Decay	0.50

158	1.49 minutes	Electron Capture	100.00

		Alpha Decay	~ 2.1E-3

159	1.58 minutes	Electron Capture	100.00

160	4.8 minutes	Electron Capture	100.00

161	4.2 minutes	Electron Capture	100.00

162	18.87 minutes	Electron Capture	100.00

163	11.05 minutes	Electron Capture	100.00

164	75.8 minutes	Electron Capture	100.00

165	9.9 minutes	Electron Capture	100.00

166	56.7 hours	Electron Capture	100.00

167	17.5 minutes	Electron Capture	100.00

168	Stable	-	-

169	32.026 days	Electron Capture	100.00

169_m	46 seconds	Isomeric Transition	100.00

170	Stable	-	-

171	Stable	-	-

172	Stable	-	-

173	Stable	-	-

174	Stable	-	-

175	4.185 days	Beta-minus Decay	100.00

176	≥ 1.6×10⁺¹⁷ years	Double Beta-minus Decay	No Data Available

176_m	11.4 seconds	Isomeric Transition	>= 90.00

		Beta-minus Decay	<= 10.00

177	1.911 hours	Beta-minus Decay	100.00

177_m	6.41 seconds	Isomeric Transition	100.00

178	74 minutes	Beta-minus Decay	100.00

179	8.0 minutes	Beta-minus Decay	100.00

180	2.4 minutes	Beta-minus Decay	100.00

181	≈ 1 minutes	Beta-minus Decay	No Data Available