Scandium-44m1
Properties and data of the isotope 44Sc.
See also: list of Scandium isotopes.
General data
Name of the isotope:Scandium-44m1; Sc-44m1Symbol:44Sc or 4421ScMass number A:44 (= number of nucleons)Atomic number Z:21 (= number of protons)Neutrons N:23Isotopic mass:43.9594029(19) u (atomic weight of Scandium-44m1)
Excitation energy: 67.8679(14) keVNuclide mass:43.9478829 u (calculated nuclear mass without electrons)Mass excess:-37.81596 MeVMass defect:0.40421584000001 u (per nucleus)Nuclear binding energy:376.52462966 MeV (per nucleus)
8.55737795 MeV (average binding energy per nucleon)Half-life:154.8(8) nsDecay constant λ:4477694.9648575 s-1Specific activity α:6.27100228051 × 10+28 Bq g-1
1.694865481219 × 10+18 Ci g-1Spin and parity:
(nuclear angular momentum)1-Magnetic dipole moment:μ(μN) = + 0.342(6)Quadrupole moment Q:0.21(2) barn (100 fm2)Nuclear g-factor:gl = 0.342
Nuclear Isomers
Nuclear isomers or excited states with the activation energy in keV related to the ground state.
Nuclear Isomer | Excitation Energy | Half-life | Spin |
---|
44Sc | | 3.97(4) h | 2+ |
44m2Sc | 146.1914(20) keV | 51.0(3) μs | 0- |
44m3Sc | 271.24(1) keV | 58.61(10) h | 6+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 23) and isobaric (same nucleon number A = 44) with Scandium-44m1. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 23 | Isobar A = 44 |
10 | 33Ne | |
11 | 34Na | |
12 | 35Mg | |
13 | 36Al | |
14 | 37Si | 44Si |
15 | 38P | 44P |
16 | 39S | 44S |
17 | 40Cl | 44Cl |
18 | 41Ar | 44Ar |
19 | 42K | 44K |
20 | 43Ca | 44Ca |
21 | 44Sc | 44Sc |
22 | 45Ti | 44Ti |
23 | 46V | 44V |
24 | 47Cr | 44Cr |
25 | 48Mn | 44Mn |
26 | 49Fe | |
27 | 50Co | |
28 | 51Ni | |
External data and identifiers
Last update: 2020-10-13
Perma link: https://www.chemlin.org/isotope/scandium-44m1
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