Scandium-47
Properties and data of the isotope 47Sc.
See also: list of Scandium isotopes.
General data
Name of the isotope:Scandium-47; Sc-47Symbol:47Sc or 4721ScMass number A:47 (= number of nucleons)Atomic number Z:21 (= number of protons)Neutrons N:26Isotopic mass:46.9524075(22) u (atomic weight of Scandium-47)Nuclide mass:46.9408875 u (calculated nuclear mass without electrons)Mass excess:-44.33213 MeVMass defect:0.437205988 u (per nucleus)Nuclear binding energy:407.25475459 MeV (per nucleus)
8.66499478 MeV (average binding energy per nucleon)Separation energy:SN = 10.6467(20) MeV (first neutron)
SP = 8.4862(12) MeV (first proton)Half-life:3.3492(6) dDecay constant λ:2.395359134132 × 10-6 s-1Specific activity α:3.135910894756 × 10+16 Bq g-1
847543.48506943 Ci g-1Spin and parity:
(nuclear angular momentum)7/2-Isobaric spin: 5/2Magnetic dipole moment:μ(μN) = + 5.34(2)Quadrupole moment Q:- 0.022(3) barn (100 fm2)Nuclear g-factor:gl = 1.5257142857143Mirror nucleus:Iron-47Year of discovery:1945
Radioactive Decay
Half-life T½ = 3.3492(6) d respectively 2.8937088 × 105 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 47Ti | 100 % | 0.6008(19) MeV | |
Parent Nuclides
Direct parent isotope is: 47Ca.
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 |
---|
47mSc | 766.83(9) keV | 272(8) ns | (3/2)+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 26) and isobaric (same nucleon number A = 47) with Scandium-47. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
Z | Isotone N = 26 | Isobar A = 47 |
11 | 37Na | |
12 | 38Mg | |
13 | 39Al | |
14 | 40Si | |
15 | 41P | |
16 | 42S | 47S |
17 | 43Cl | 47Cl |
18 | 44Ar | 47Ar |
19 | 45K | 47K |
20 | 46Ca | 47Ca |
21 | 47Sc | 47Sc |
22 | 48Ti | 47Ti |
23 | 49V | 47V |
24 | 50Cr | 47Cr |
25 | 51Mn | 47Mn |
26 | 52Fe | 47Fe |
27 | 53Co | 47Co |
28 | 54Ni | |
29 | 55Cu | |
30 | 56Zn | |
External data and identifiers
Last update: 2023-10-04
Perma link: https://www.chemlin.org/isotope/scandium-47
© 1996 - 2025 ChemLin