Magnesium-34
Properties and data of the isotope 34Mg.
See also: list of Magnesium isotopes.
General data
Name of the isotope:Magnesium-34; Mg-34Symbol:34Mg or 3412MgMass number A:34 (= number of nucleons)Atomic number Z:12 (= number of protons)Neutrons N:22Isotopic mass:34.00894(3) u (atomic weight of Magnesium-34)Nuclide mass:34.0023571 u (calculated nuclear mass without electrons)Mass excess:8.32756 MeVMass defect:0.275588536 u (per nucleus)Nuclear binding energy:256.70906775 MeV (per nucleus)
7.5502667 MeV (average binding energy per nucleon)Separation energy:SN = 4.710(29) MeV (first neutron)
SP = 22.75(45) MeV (first proton)Half-life:20(10) msDecay constant λ:3.4657359027997 s-1Specific activity α:6.138573467647 × 10+22 Bq g-1
1659073910174.9 Ci g-1Spin and parity:
(nuclear angular momentum)0+Year of discovery:1979
Radioactive Decay
Half-life T½ = 20(10) ms respectively 2.0 × 10-1 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 34Al | | 11.60756 MeV | |
β-, n | 33Al | | 8.9263 MeV | |
Parent Nuclides
Direct parent isotopes are: 34Na, 35Na.
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 22) and isobaric (same nucleon number A = 34) with Magnesium-34. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
Z | Isotone N = 22 | Isobar A = 34 |
9 | 31F | |
10 | 32Ne | 34Ne |
11 | 33Na | 34Na |
12 | 34Mg | 34Mg |
13 | 35Al | 34Al |
14 | 36Si | 34Si |
15 | 37P | 34P |
16 | 38S | 34S |
17 | 39Cl | 34Cl |
18 | 40Ar | 34Ar |
19 | 41K | 34K |
20 | 42Ca | 34Ca |
21 | 43Sc | |
22 | 44Ti | |
23 | 45V | |
24 | 46Cr | |
25 | 47Mn | |
26 | 48Fe | |
27 | 49Co | |
28 | 50Ni | |
External data and identifiers
Last update: 2020-10-12
Perma link: https://www.chemlin.org/isotope/magnesium-34
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