Periodic Table/Magnesium/³¹Mg

← 30Mg32Mg →

³¹Mg

Magnesium-31

Radioactive· Half-life: 270 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

12

Neutrons (N)

19

Mass Number (A)

31

Atomic Mass

30.996648AMU

Spin / Parity

1/2+

Binding E/A

7.671keV

Natural Abundance

Trace / None

Half-life

270 ms

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

β⁻

100.0%

β⁻n

6.2%

Decay Chain

³¹MgMagnesium270 ms

β⁻100.0%

β⁻n³⁰Al6.20%

³¹AlAluminum644 ms

β⁻100.0%

β⁻n³⁰Si1.60%

³¹SiSilicon2.62 h

β⁻100.0%

³¹PPhosphorusSTABLE

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

Other Isotopes of Magnesium

19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

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