Periodic Table/Phosphorus/⁴⁰P

← 39P41P →

⁴⁰P

Phosphorus-40

Radioactive· Half-life: 150 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

15

Neutrons (N)

25

Mass Number (A)

40

Atomic Mass

39.991262AMU

Spin / Parity

2-

Binding E/A

7.790keV

Natural Abundance

Trace / None

Half-life

150 ms

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

β⁻

100.0%

β⁻n

15.8%

2n

Decay Chain

⁴⁰PPhosphorus150 ms

β⁻100.0%

β⁻n³⁹S15.8%

2n³⁸P

⁴⁰SSulfur8.80 s

β⁻100.0%

⁴⁰ClChlorine1.35 min

β⁻100.0%

⁴⁰ArArgonSTABLE

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

Other Isotopes of Phosphorus

24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

← Back to PhosphorusData: IAEA NDS · ENSDF