Dysprosium-166 (Dy-166)

Identity

Protons

66

Neutrons

100

Mass number

166

Mass

165.93 ± 0.86 u

Mass excess

-62.584 MeV

Spin

0+

Stability

Half-life: 3.4 days

Natural occurrence

Not found in nature

Decays to

• beta minus → Ho-166