Periodic Table/Potassium/⁴⁹K

← 48K50K →

⁴⁹K

Potassium-49

Radioactive· Half-life: 1.26 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

19

Neutrons (N)

30

Mass Number (A)

49

Atomic Mass

48.968211AMU

Spin / Parity

1/2+

Binding E/A

8.174keV

Natural Abundance

Trace / None

Half-life

1.26 s

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

β⁻

100.0%

β⁻n

86.0%

Decay Chain

⁴⁹KPotassium1.26 s

β⁻100.0%

β⁻n⁴⁸Ca86.0%

⁴⁹CaCalcium8.72 min

β⁻100.0%

⁴⁹ScScandium57.2 min

β⁻100.0%

⁴⁹TiTitaniumSTABLE

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

Other Isotopes of Potassium

31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59

← Back to PotassiumData: IAEA NDS · ENSDF