Rh

Rhodium-99m

Protons (Z)

45

Neutrons (N)

54

Mass number

99

Half-Life

4.7 h

Abundance

---

Mass

98.908 u

Mass Excess

-85,521.0 keV

Spin

9/2+

Discovered

1952

Binding energy per nucleon

8,580 keV

Neutron separation energy

10,417 keV

Proton separation energy

4,585 keV

Decay Mode

Decay chain

Rhodium-99Z 45 · N 544.7 h
β⁺100%