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Scandium-47

Properties and data of the isotope 47Sc.


Contents

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-1
Spin 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
DaughterProbabilityDecay energyγ energy
(intensity)
β-47Ti100 %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 IsomerExcitation EnergyHalf-lifeSpin
47mSc766.83(9) keV272(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.

 

ZIsotone N = 26Isobar A = 47
1137Na
1238Mg
1339Al
1440Si
1541P
1642S47S
1743Cl47Cl
1844Ar47Ar
1945K47K
2046Ca47Ca
2147Sc47Sc
2248Ti47Ti
2349V47V
2450Cr47Cr
2551Mn47Mn
2652Fe47Fe
2753Co47Co
2854Ni
2955Cu
3056Zn

 

External data and identifiers

Adopted Levels, Gammas:NuDat 47Sc

 


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Last update: 2023-10-04


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