It's Elemental - Isotopes of the Element Cadmium

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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 Cadmium with a Known Natural Abundance

Mass Number	Natural Abundance	Half-life

106	1.25%	≥ 2.6×10⁺¹⁷ years

108	0.89%	Stable

110	12.49%	Stable

111	12.80%	Stable

112	24.13%	Stable

113	12.22%	7.7×10⁺¹⁵ years

114	28.73%	Stable

116	7.49%	> 1.2×10⁺²¹ years

All Known Isotopes of the Element Cadmium

Mass Number	Half-life	Decay Mode	Branching Percentage

96	≈ 1 seconds	Electron Capture	No Data Available

97	2.8 seconds	Electron Capture	No Data Available

		Electron Capture with delayed Proton Emission	No Data Available

98	9.2 seconds	Electron Capture	100.00

		Electron Capture with delayed Proton Emission	< 0.03

99	16 seconds	Electron Capture	100.00

		Electron Capture with delayed Proton Emission	0.17

		Electron Capture with delayed Alpha Decay	< 1.0E-4

100	49.1 seconds	Electron Capture	100.00

101	1.36 minutes	Electron Capture	100.00

102	5.5 minutes	Electron Capture	100.00

103	7.3 minutes	Electron Capture	100.00

104	57.7 minutes	Electron Capture	100.00

105	55.5 minutes	Electron Capture	100.00

106	≥ 2.6×10⁺¹⁷ years	Double Electron Capture	No Data Available

107	6.50 hours	Electron Capture	100.00

108	Stable	-	-

109	461.4 days	Electron Capture	100.00

110	Stable	-	-

111	Stable	-	-

111_m	48.50 minutes	Isomeric Transition	100.00

112	Stable	-	-

113	7.7×10⁺¹⁵ years	Beta-minus Decay	100.00

113_m	14.1 years	Beta-minus Decay	99.86

		Isomeric Transition	0.14

114	Stable	-	-

115	53.46 hours	Beta-minus Decay	100.00

115_m	44.56 days	Beta-minus Decay	100.00

116	> 1.2×10⁺²¹ years	Double Beta-minus Decay	No Data Available

117	2.49 hours	Beta-minus Decay	100.00

117_m	3.36 hours	Beta-minus Decay	100.00

118	50.3 minutes	Beta-minus Decay	100.00

119	2.69 minutes	Beta-minus Decay	100.00

119_m	2.20 minutes	Beta-minus Decay	100.00

120	50.80 seconds	Beta-minus Decay	100.00

121	13.5 seconds	Beta-minus Decay	100.00

121_m	8.3 seconds	Beta-minus Decay	100.00

122	5.24 seconds	Beta-minus Decay	100.00

123	2.10 seconds	Beta-minus Decay	100.00

123_m	1.82 seconds	Beta-minus Decay	No Data Available

		Isomeric Transition	No Data Available

124	1.25 seconds	Beta-minus Decay	100.00

125	0.65 seconds	Beta-minus Decay	100.00

125_m	0.48 seconds	Beta-minus Decay	100.00

126	0.506 seconds	Beta-minus Decay	100.00

127	0.37 seconds	Beta-minus Decay	100.00

128	0.28 seconds	Beta-minus Decay	100.00

129	0.27 seconds	Beta-minus Decay	No Data Available

130	0.20 seconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	~ 4.00

131	≈ 0.18 seconds	Beta-minus Decay	No Data Available