Periodic Table/Nitrogen/²¹N

← 20N22N →

²¹N

Nitrogen-21

Radioactive· Half-life: 85.0 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

7

Neutrons (N)

14

Mass Number (A)

21

Atomic Mass

21.027088AMU

Spin / Parity

1/2-

Binding E/A

6.439keV

Natural Abundance

Trace / None

Half-life

85.0 ms

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

β⁻

100.0%

β⁻n

87.0%

2n

Decay Chain

²¹NNitrogen85.0 ms

β⁻100.0%

β⁻n²⁰O87.0%

2n¹⁹N

²¹OOxygen3.42 s

β⁻100.0%

β⁻n²⁰F

²¹FFluorine4.16 s

β⁻100.0%

²¹NeNeonSTABLE

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

Other Isotopes of Nitrogen

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

← Back to NitrogenData: IAEA NDS · ENSDF