Periodic Table/Magnesium/²⁰Mg

← 19Mg21Mg →

²⁰Mg

Magnesium-20

Radioactive· Half-life: 90.4 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

12

Neutrons (N)

8

Mass Number (A)

20

Atomic Mass

20.018763AMU

Spin / Parity

0+

Binding E/A

6.421keV

Natural Abundance

Trace / None

Half-life

90.4 ms

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

β⁺

100.0%

β⁺p

30.3%

Decay Chain

²⁰MgMagnesium90.4 ms

β⁺100.0%

β⁺p¹⁹Ne30.3%

²⁰NaSodium448 ms

β⁺100.0%

β⁺α¹⁶O25.0%

²⁰NeNeonSTABLE

3-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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