Po

Polonium-211m

Protons (Z)

84

Neutrons (N)

127

Mass number

211

Half-Life

25.2 s

Abundance

---

Mass

210.988 u

Mass Excess

-10,970.0 keV

Spin

(25/2+)

Discovered

1954

Binding energy per nucleon

7,812 keV

Neutron separation energy

3,088 keV

Proton separation energy

3,467 keV

Decay Mode

Decay chain

Polonium-211Z 84 · N 12725.2 s
α99.984%