Rn

Radon-215

Protons (Z)

86

Neutrons (N)

129

Mass number

215

Half-Life

2.3 µs

Abundance

---

Mass

214.999 u

Mass Excess

-1,169.0 keV

Spin

9/2+

Discovered

1952

Binding energy per nucleon

7,764 keV

Neutron separation energy

4,920 keV

Proton separation energy

5,079 keV

Decay Mode

αPolonium-211100%

Decay chain

Radon-215Z 86 · N 1292.3 µs
α100%
α100%