Periodic Table/Erbium/¹⁵⁶Er

← 155Er157Er →

¹⁵⁶Er

Erbium-156

Radioactive· Half-life: 19.5 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

68

Neutrons (N)

88

Mass Number (A)

156

Atomic Mass

155.931066AMU

Spin / Parity

0+

Binding E/A

7.919keV

Natural Abundance

Trace / None

Half-life

19.5 min

Decay Modesoverview · half-life · α · β⁻ · β⁺

β⁺

100.0%

α

1.2%

Decay Chain

¹⁵⁶ErErbium19.5 min

β⁺100.0%

α¹⁵²Dy1.20%

¹⁵⁶HoHolmium56.0 min

β⁺100.0%

¹⁵⁶DyDysprosiumSTABLE

3-step decay chain → stable · Primary path shown · branching ratios indicated

Other Isotopes of Erbium

142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180

← Back to ErbiumData: IAEA NDS · ENSDF