Boron-10
Properties and data of the isotope 10B.
See also: list of Boron isotopes.
General data
Name of the isotope:Boron-10; B-10Symbol:10B or 105BMass number A:10 (= number of nucleons)Atomic number Z:5 (= number of protons)Neutrons N:5Isotopic mass:10.012937(3) u (atomic weight of Boron-10)Nuclide mass:10.0101941 u (calculated nuclear mass without electrons)Mass excess:12.05074 MeVMass defect:0.069512739999999 u (per nucleus)Nuclear binding energy:64.75070023 MeV (per nucleus)
6.47507002 MeV (average binding energy per nucleon)Separation energy:SN = 8.4372(9) MeV (first neutron)
SP = 6.58681(8) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)3+Isobaric spin: 0Magnetic dipole moment:μ(μN) = 1.8004636(8)Charge radius:2.4277(499) femtometer fmYear of discovery:1920
Parent Nuclides
Direct parent isotopes are: 10Be, 10C.
Occurrence
Comparison of the natural Boron isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):
| Atomic Mass ma | Quantity | Half-life | Spin |
---|
Boron Isotopic mixture | 10.81 u | 100 % | | |
Isotope 10B | 10.012937(3) u | 19.65 % [18.9 - 20.4 %] | stable | 3+ |
Isotope 11B | 11.009305(3) u | 80.35 % [79.6 - 81.1 %] | stable | 3/2- |
NMR data
Nuclear magnetic properties of the NMR active Nuclide 10B
Isotope:10B-NMRQuantity:19.65 % [18.9 - 20.4 %]Spin:3+Nuclearmagnetic moment
μ/μN:1.8004636(8)Gyromagnetic ratio γ:2.875 · 107 rad T-1 s-1Nuclear g-factor:gl = 0.60015453333333Quadrupole moment Q:+0.0846(2) barn (100 fm2)Line width parameter (factor):l = 14.31 fm4Resonance frequency:v0 = 4.5752 at 1 TRelative Sensitivity:0.01985 (H0 = const.)
1.7193 (v0 = const.)
[related to 1H = 1.000]
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 5) and isobaric (same nucleon number A = 10) with Boron-10. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 5 | Isobar A = 10 |
1 | 6H | |
2 | 7He | 10He |
3 | 8Li | 10Li |
4 | 9Be | 10Be |
5 | 10B | 10B |
6 | 11C | 10C |
7 | 12N | 10N |
8 | 13O | |
9 | 14F | |
10 | 15Ne | |
External data and identifiers
CAS:14798-12-0InChI Key:ZOXJGFHDIHLPTG-BJUDXGSMSA-NSMILES:[10B]PubChem:ID 6337058Adopted Levels, Gammas:NuDat 10B
Last update: 2023-11-06
Perma link: https://www.chemlin.org/isotope/boron-10
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