Nitrogen-16m

Properties and data of the isotope ¹⁶N.

Content

General data

Name of the isotope:Nitrogen-16m; N-16mSymbol:¹⁶N or 167NMass number A:16 (= number of nucleons)Atomic number Z:7 (= number of protons)Neutrons N:9Isotopic mass:16.0061019(25) u (atomic weight of Nitrogen-16m)
Excitation energy: 120.42(12) keVNuclide mass:16.0022619 u (calculated nuclear mass without electrons)Mass excess:5.68388 MeVMass defect:0.126657568 u (per nucleus)Nuclear binding energy:117.98076465 MeV (per nucleus)
7.37379779 MeV (average binding energy per nucleon)Half-life:5.25(6) μsDecay constant λ:132028.03439237 s^-1Specific activity α:4.969321378571 × 10⁺²⁷ Bq g^-1
1.343059832046 × 10⁺¹⁷ Ci g^-1Spin and parity:
(nuclear angular momentum)0-

Radioactive Decay

Half-life T_½ = 5.25(6) μs respectively 5.25 × 10^-6 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
Iso	¹⁶N	99.9996 %
β^-	¹⁶O	0.0004 %

Nuclear Isomers

Nuclear isomers or excited states with the activation energy in keV related to the ground state.

Nuclear Isomer	Excitation Energy	Half-life	Spin
¹⁶N		7.13(2) s	2-

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 9) and isobaric (same nucleon number A = 16) with Nitrogen-16m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 9	Isobar A = 16
3	¹²Li
4	¹³Be	¹⁶Be
5	¹⁴B	¹⁶B
6	¹⁵C	¹⁶C
7	¹⁶N	¹⁶N
8	¹⁷O	¹⁶O
9	¹⁸F	¹⁶F
10	¹⁹Ne	¹⁶Ne
11	²⁰Na
12	²¹Mg
13	²²Al
14	²³Si
15	²⁴P