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Isotopes of nitrogen - Wikipedia, the free encyclopedia

Isotopes of nitrogen

From Wikipedia, the free encyclopedia

Nitrogen (N)
Standard atomic mass: 14.0067(2) u

[edit] Table

nuclide
symbol
Z(p) N(n)  
isotopic mass (u)
 
half-life nuclear
spin
representative
isotopic
composition
(mole fraction)
range of natural
variation
(mole fraction)
excitation energy
10N 7 3 10.04165(43) 200(140)×10−24 s [2.3(16) MeV] (2-)
11N 7 4 11.02609(5) 590(210)×10−24 s [1.58(+75-52) MeV] 1/2+
11mN 740(60) keV 6.90(80)×10−22 s 1/2-
12N 7 5 12.0186132(11) 11.000(16) ms 1+
13N 7 6 13.00573861(29) 9.965(4) min 1/2-
14N 7 7 14.0030740048(6) STABLE 1+ 0.99636(20) 0.99579-0.99654
15N 7 8 15.0001088982(7) STABLE 1/2- 0.00364(20) 0.00346-0.00421
16N 7 9 16.0061017(28) 7.13(2) s 2-
17N 7 10 17.008450(16) 4.173(4) s 1/2-
18N 7 11 18.014079(20) 622(9) ms 1-
19N 7 12 19.017029(18) 271(8) ms (1/2)-
20N 7 13 20.02337(6) 130(7) ms
21N 7 14 21.02711(10) 87(6) ms 1/2-#
22N 7 15 22.03439(21) 13.9(14) ms
23N 7 16 23.04122(32)# 14.5(24) ms [14.1(+12-15) ms] 1/2-#
24N 7 17 24.05104(43)# <52 ns
25N 7 18 25.06066(54)# <260 ns 1/2-#

[edit] Notes

  • The precision of the isotope abundances and atomic mass is limited through variations. The given ranges should be applicable to any normal terrestrial material.
  • Values marked # are not purely derived from experimental data, but at least partly from systematic trends. Spins with weak assignment arguments are enclosed in parentheses.
  • Uncertainties are given in concise form in parentheses after the corresponding last digits. Uncertainty values denote one standard deviation, except isotopic composition and standard atomic mass from IUPAC which use expanded uncertainties.

[edit] References


Isotopes of carbon Isotopes of nitrogen Isotopes of oxygen
Index to isotope pages

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