Tc

Technetium-90m

Protons (Z)

43

Neutrons (N)

47

Mass number

90

Half-Life

8.7 s

Abundance

---

Mass

89.924 u

Mass Excess

-70,580.7 keV

Spin

1+

Discovered

1974

Binding energy per nucleon

8,482 keV

Neutron separation energy

11,257 keV

Proton separation energy

2,855 keV

Decay Mode

β⁺Molybdenum-90100%

Decay chain

Technetium-90Z 43 · N 478.7 s
β⁺100%
β⁺100%
β⁺100%