Periodic Table/Aluminum/⁴²Al

← 41Al43Al →

⁴²Al

Aluminum-42

Radioactive

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

13

Neutrons (N)

29

Mass Number (A)

42

Atomic Mass

42.045078AMU

Spin / Parity

—

Binding E/A

6.671keV

Natural Abundance

Trace / None

Half-life

Unknown

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

β⁻

β⁻n

2n

Decay Chain

⁴²AlAluminum?

β⁻

β⁻n⁴¹Si

2n⁴⁰Al

⁴²SiSilicon12.5 ms

β⁻100.0%

β⁻n⁴¹P

2n⁴⁰Si

⁴²PPhosphorus48.5 ms

β⁻100.0%

β⁻n⁴¹S50.0%

2n⁴⁰P

⁴²SSulfur1.02 s

β⁻100.0%

β⁻n⁴¹Cl1.00%

⁴²ClChlorine6.80 s

β⁻100.0%

β⁻n⁴¹Ar

⁴²ArArgon32.9 y

β⁻100.0%

⁴²KPotassium12.4 h

β⁻100.0%

⁴²CaCalciumSTABLE

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

Other Isotopes of Aluminum

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

← Back to AluminumData: IAEA NDS · ENSDF