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Magnesium-39

Properties and data of the isotope 39Mg.


Content

See also: list of Magnesium isotopes.

 

General data

Name of the isotope:Magnesium-39; Mg-39Symbol:39Mg or 3912MgMass number A:39 (= number of nucleons)Atomic number Z:12 (= number of protons)Neutrons N:27Isotopic mass:39.04538(55) u (atomic weight of Magnesium-39)Nuclide mass:39.0387971 u (calculated nuclear mass without electrons)Mass excess:42.2712 MeVMass defect:0.282473116 u (per nucleus)Nuclear binding energy:263.12201272 MeV (per nucleus)
6.74671827 MeV (average binding energy per nucleon)
Half-life:180 nsDecay constant λ:3850817.6697775 s-1Specific activity α:5.946196521367 × 10+28 Bq g-1
1.607080140910 × 10+18 Ci g-1
Spin and parity:
(nuclear angular momentum)

 

Radioactive Decay

Half-life T½ = 180 ns respectively 1.80 × 10-7 seconds s.

Decay modeDaughterProbabilityDecay energyγ energy
(intensity)
n ?

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 27) and isobaric (same nucleon number A = 39) with Magnesium-39. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 27Isobar A = 39
1138Na39Na
1239Mg39Mg
1340Al39Al
1441Si39Si
1542P39P
1643S39S
1744Cl39Cl
1845Ar39Ar
1946K39K
2047Ca39Ca
2148Sc39Sc
2249Ti39Ti
2350V
2451Cr
2552Mn
2653Fe
2754Co
2855Ni
2956Cu
3057Zn
3158Ga
3259Ge

 

External data and identifiers

Adopted Levels, Gammas:NuDat 39Mg

 


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Last update: 2020-10-12


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