Nitrogen-17
Properties and data of the isotope 17N.
See also: list of Nitrogen isotopes.
General data
Name of the isotope:Nitrogen-17; N-17Symbol:17N or 177NMass number A:17 (= number of nucleons)Atomic number Z:7 (= number of protons)Neutrons N:10Isotopic mass:17.008449(16) u (atomic weight of Nitrogen-17)Nuclide mass:17.004609 u (calculated nuclear mass without electrons)Mass excess:7.87019 MeVMass defect:0.132975384 u (per nucleus)Nuclear binding energy:123.86577234 MeV (per nucleus)
7.2862219 MeV (average binding energy per nucleon)Separation energy:SN = 5.885(15) MeV (first neutron)
SP = 13.113(15) MeV (first proton)Half-life:4.173(4) sDecay constant λ:0.16610284700694 s-1Specific activity α:5.884086717131 × 10+21 Bq g-1
159029370733.27 Ci g-1Spin and parity:
(nuclear angular momentum)1/2-Isobaric spin: 3/2Magnetic dipole moment:μ(μN) = 0.3552(4)Nuclear g-factor:gl = 0.7104Mirror nucleus:Neon-17Year of discovery:1949
Radioactive Decay
Half-life T½ = 4.173(4) s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 17O | 4.9975 % | 8.679(15) MeV | |
β-, n | 16O | 95.0 % | 4.537 MeV | |
β-, α | 13C | 0.0025 % | | |
Parent Nuclides
Direct parent isotope is: 17C.
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 10) and isobaric (same nucleon number A = 17) with Nitrogen-17. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 10 | Isobar A = 17 |
3 | 13Li | |
4 | 14Be | |
5 | 15B | 17B |
6 | 16C | 17C |
7 | 17N | 17N |
8 | 18O | 17O |
9 | 19F | 17F |
10 | 20Ne | 17Ne |
11 | 21Na | 17Na |
12 | 22Mg | |
13 | 23Al | |
14 | 24Si | |
15 | 25P | |
16 | 26S | |
External data and identifiers
Last update: 2023-10-03
Perma link: https://www.chemlin.org/isotope/nitrogen-17
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