K

Potassium-39

Protons (Z)

19

Neutrons (N)

20

Mass number

39

Half-Life

Stable

Abundance

93.2581%

Mass

38.964 u

Mass Excess

-33,807.195 keV

Spin

3/2+

Discovered

1921

Binding energy per nucleon

8,557 keV

Neutron separation energy

13,078 keV

Proton separation energy

6,381 keV

Decay Mode

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