Nitrogen-15
Properties and data of the isotope 15N.
See also: list of Nitrogen isotopes.
General data
Name of the isotope:Nitrogen-15; N-15Symbol:15N or 157NMass number A:15 (= number of nucleons)Atomic number Z:7 (= number of protons)Neutrons N:8Isotopic mass:15.000108899(4) u (atomic weight of Nitrogen-15)Nuclide mass:14.9962689 u (calculated nuclear mass without electrons)Mass excess:0.10144 MeVMass defect:0.123985653 u (per nucleus)Nuclear binding energy:115.49189186 MeV (per nucleus)
7.69945946 MeV (average binding energy per nucleon)Separation energy:SN = 10.83330(0) MeV (first neutron)
SP = 10.20742(0) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)1/2-Isobaric spin: 1/2Magnetic dipole moment:μ(μN) = -0.2830569(14)Charge radius:2.6058(80) femtometer fmMirror nucleus:Oxygen-15Year of discovery:1929
Parent Nuclides
Direct parent isotopes are: 15O, 15C.
Occurrence
Comparison of the natural Nitrogen isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):
| Atomic Mass ma | Quantity | Half-life | Spin |
---|
Nitrogen Isotopic mixture | 14.007 u | 100 % | | |
Isotope 14N | 14.003074004(2) u | 99.6205 % [99.578 - 99.663 %] | stable | 1+ |
Isotope 15N | 15.000108899(4) u | 0.3795 % [0.337 - 0.422 %] | stable | 1/2- |
NMR data
Nuclear magnetic properties of the NMR active Nuclide 15N
Isotope:15N-NMRQuantity:0.3795 % [0.337 - 0.422 %]Spin:1/2-Nuclearmagnetic moment
μ/μN:-0.2830569(14)Gyromagnetic ratio γ:- 2.712 · 107 rad T-1 s-1Nuclear g-factor:gl = -0.5661138Resonance frequency:v0 = 4.3173 at 1 TRelative Sensitivity:0.00104 (H0 = const.)
0.1014 (v0 = const.)
[related to 1H = 1.000]
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 8) and isobaric (same nucleon number A = 15) with Nitrogen-15. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 8 | Isobar A = 15 |
2 | 10He | |
3 | 11Li | |
4 | 12Be | 15Be |
5 | 13B | 15B |
6 | 14C | 15C |
7 | 15N | 15N |
8 | 16O | 15O |
9 | 17F | 15F |
10 | 18Ne | 15Ne |
11 | 19Na | |
12 | 20Mg | |
13 | 21Al | |
14 | 22Si | |
External data and identifiers
Last update: 2023-10-03
Perma link: https://www.chemlin.org/isotope/nitrogen-15
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