Nitrogen-14

Properties and data of the isotope ¹⁴N.

Content

General data

Name of the isotope:Nitrogen-14; N-14Symbol:¹⁴N or 147NMass number A:14 (= number of nucleons)Atomic number Z:7 (= number of protons)Neutrons N:7Isotopic mass:14.003074004(2) u (atomic weight of Nitrogen-14)Nuclide mass:13.999234 u (calculated nuclear mass without electrons)Mass excess:2.86342 MeVMass defect:0.112355632 u (per nucleus)Nuclear binding energy:104.65859707 MeV (per nucleus)
7.47561408 MeV (average binding energy per nucleon)Separation energy:S_N = 10.55338(27) MeV (first neutron)
S_P = 7.55056(0) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)1+Isobaric spin: 0Magnetic dipole moment:μ(μ_N) = + 0.403573(2)Charge radius:2.5582(70) femtometer fmYear of discovery:1920

Parent Nuclides

Direct parent isotopes are: ¹⁴O, ¹⁴C.

Occurrence

Comparison of the natural Nitrogen isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):

	Atomic Mass m_a	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 ¹⁴N

Isotope:¹⁴N-NMRQuantity:99.6205 % [99.578 - 99.663 %]Spin:1+Nuclearmagnetic moment
μ/μ_N:+ 0.403573(2)Gyromagnetic ratio γ:1.9338 · 10⁷ rad T^-1 s^-1Nuclear g-factor:g_l = 0.403573Quadrupole moment Q:0.02044(3) barn (100 fm²)Line width parameter (factor):l = 20.89 fm⁴Resonance frequency:v₀ = 3.0777 at 1 TRelative Sensitivity:0.00101 (H₀ = const.)
0.1928 (v₀ = const.)
[related to ¹H = 1.000]

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 7) and isobaric (same nucleon number A = 14) with Nitrogen-14. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.