Periodic Table/Potassium/⁵⁷K

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⁵⁷K

Potassium-57

Radioactive

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

19

Neutrons (N)

38

Mass Number (A)

57

Atomic Mass

57.015169AMU

Spin / Parity

3/2+

Binding E/A

7.392keV

Natural Abundance

Trace / None

Half-life

Unknown

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

β⁻

β⁻n

2n

Decay Chain

⁵⁷KPotassium?

β⁻

β⁻n⁵⁶Ca

2n⁵⁵K

⁵⁷CaCalcium?

β⁻

β⁻n⁵⁶Sc

2n⁵⁵Ca

⁵⁷ScScandium22.0 ms

β⁻100.0%

β⁻n⁵⁶Ti

2n⁵⁵Sc

⁵⁷TiTitanium95.0 ms

β⁻100.0%

β⁻n⁵⁶V

⁵⁷VVanadium350 ms

β⁻100.0%

β⁻n⁵⁶Cr

⁵⁷CrChromium21.1 s

β⁻100.0%

⁵⁷MnManganese1.42 min

β⁻100.0%

⁵⁷FeIronSTABLE

8-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