Scandium-43m2

Properties and data of the isotope ⁴³Sc.

Content

General data

Name of the isotope:Scandium-43m2; Sc-43m2Symbol:⁴³Sc or 4321ScMass number A:43 (= number of nucleons)Atomic number Z:21 (= number of protons)Neutrons N:22Isotopic mass:42.9611505(20) u (atomic weight of Scandium-43m2)
Excitation energy: 3123.73(15) keVNuclide mass:42.9496305 u (calculated nuclear mass without electrons)Mass excess:-36.18808 MeVMass defect:0.393803324 u (per nucleus)Nuclear binding energy:366.82543349 MeV (per nucleus)
8.53082403 MeV (average binding energy per nucleon)Half-life:472(4) nsDecay constant λ:1468532.1622033 s^-1Specific activity α:2.10564465193 × 10⁺²⁸ Bq g^-1
5.690931491721 × 10⁺¹⁷ Ci g^-1Spin and parity:
(nuclear angular momentum)(19/2)-Magnetic dipole moment:μ(μ_N) = + 3.122(7)Quadrupole moment Q:0.199(14) barn (100 fm²)Nuclear g-factor:g_l = 0.32863157894737

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
⁴³Sc		3.891(12) h	7/2-
^43m1Sc	151.79(8) keV	438(7) μs	3/2+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 22) and isobaric (same nucleon number A = 43) with Scandium-43m2. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 22	Isobar A = 43
9	³¹F
10	³²Ne
11	³³Na
12	³⁴Mg
13	³⁵Al	⁴³Al
14	³⁶Si	⁴³Si
15	³⁷P	⁴³P
16	³⁸S	⁴³S
17	³⁹Cl	⁴³Cl
18	⁴⁰Ar	⁴³Ar
19	⁴¹K	⁴³K
20	⁴²Ca	⁴³Ca
21	⁴³Sc	⁴³Sc
22	⁴⁴Ti	⁴³Ti
23	⁴⁵V	⁴³V
24	⁴⁶Cr	⁴³Cr
25	⁴⁷Mn	⁴³Mn
26	⁴⁸Fe
27	⁴⁹Co
28	⁵⁰Ni