Periodic Table/Argon/⁴⁹Ar

← 48Ar50Ar →

⁴⁹Ar

Argon-49

Radioactive· Half-life: 236 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

18

Neutrons (N)

31

Mass Number (A)

49

Atomic Mass

48.981685AMU

Spin / Parity

3/2-

Binding E/A

7.944keV

Natural Abundance

Trace / None

Half-life

236 ms

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

β⁻

100.0%

β⁻n

29.0%

2n

Decay Chain

⁴⁹ArArgon236 ms

β⁻100.0%

β⁻n⁴⁸K29.0%

2n⁴⁷Ar

⁴⁹KPotassium1.26 s

β⁻100.0%

β⁻n⁴⁸Ca86.0%

⁴⁹CaCalcium8.72 min

β⁻100.0%

⁴⁹ScScandium57.2 min

β⁻100.0%

⁴⁹TiTitaniumSTABLE

5-step decay chain → stable · Primary path shown · branching ratios indicated

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