Ar

Argon-42

Protons (Z)

18

Neutrons (N)

24

Mass number

42

Half-Life

32.9 y

Abundance

---

Mass

41.963 u

Mass Excess

-34,423.0 keV

Spin

0+

Discovered

1952

Binding energy per nucleon

8,556 keV

Neutron separation energy

9,427 keV

Proton separation energy

14,402 keV

Decay Mode

β⁻Potassium-42100%

Decay chain

Argon-42Z 18 · N 2432.9 y
β⁻100%
β⁻100%