Kalium-40

Eienskappe

Algemeen
Naam	Kalium-40
Protone	19
Neutrone	21
Kernspin	4-[1]
Massa-oorskot	-33535,20 keV[1]
Status
Status	radioaktief, langlewende oerisotoop[1]
Halfleeftyd	1,251 x 109 j
Vervalvorm	beta- of elektronvangs[1]
Navigasie
3818Ar 3919K 4020Ca ${\displaystyle \nwarrow }$${\displaystyle \uparrow }$${\displaystyle \nearrow }$ ${\displaystyle \leftarrow }$4019K${\displaystyle \rightarrow }$ ${\displaystyle \swarrow }$${\displaystyle \downarrow }$${\displaystyle \searrow }$ 4018Ar 4119K 4220Ca
Lys van isotope
Portaal Chemie
Portaal Fisika

Kalium-40 (chemiese notasie ⁴⁰₁₉K) is 'n langlewende radio-aktiewe isotoop van kalium. Dit verval meestal deur betaverval na ⁴⁰₂₀Ca, maar soms deur elektronvangs na ⁴⁰₁₈Ar.

1. ↑ ^{1,0 1,1 1,2 1,3} The NUBASE evaluation of nuclear and decay properties G. Audi, O. Bersillon, J. Blachot, A.H. Wapstra IUPAC