Periodic Table/Argon/⁴²Ar

← 41Ar43Ar →

⁴²Ar

Argon-42

Radioactive· Half-life: 32.9 y

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

18

Neutrons (N)

24

Mass Number (A)

42

Atomic Mass

41.963046AMU

Spin / Parity

0+

Binding E/A

8.337keV

Natural Abundance

Trace / None

Half-life

32.9 y

Decay Modesoverview · half-life · α · β⁻ · β⁺

β⁻

100.0%

Decay Chain

⁴²ArArgon32.9 y

β⁻100.0%

⁴²KPotassium12.4 h

β⁻100.0%

⁴²CaCalciumSTABLE

3-step decay chain → stable · Primary path shown

Other Isotopes of Argon

29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

← Back to ArgonData: IAEA NDS · ENSDF