Scandium-41

Properties and data of the isotope ⁴¹Sc.

Content

General data

Name of the isotope:Scandium-41; Sc-41Symbol:⁴¹Sc or 4121ScMass number A:41 (= number of nucleons)Atomic number Z:21 (= number of protons)Neutrons N:20Isotopic mass:40.96925110(9) u (atomic weight of Scandium-41)Nuclide mass:40.9577311 u (calculated nuclear mass without electrons)Mass excess:-28.64242 MeVMass defect:0.368372892 u (per nucleus)Nuclear binding energy:343.13713866 MeV (per nucleus)
8.3691985 MeV (average binding energy per nucleon)Separation energy:S_N = 16.1904(28) MeV (first neutron)
S_P = 1.08500(8) MeV (first proton)Half-life:596.3(17) msDecay constant λ:1.1624135176253 s^-1Specific activity α:1.750054485158 × 10⁺²² Bq g^-1
472987698691.49 Ci g^-1Spin and parity:
(nuclear angular momentum)7/2-Magnetic dipole moment:μ(μ_N) = +5.4283(14)Quadrupole moment Q:- 0.156(3) barn (100 fm²)Nuclear g-factor:g_l = 1.5509428571429Mirror nucleus:Calcium-41Year of discovery:1941

Radioactive Decay

Half-life T_½ = 596.3(17) ms respectively 5.963 × 10^-1 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE/β⁺	⁴¹Ca		6.49548(16) MeV

Parent Nuclides

Direct parent isotopes are: ⁴¹Ti, ⁴³Cr.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 20) and isobaric (same nucleon number A = 41) with Scandium-41. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 20	Isobar A = 41
8	²⁸O
9	²⁹F
10	³⁰Ne
11	³¹Na
12	³²Mg
13	³³Al	⁴¹Al
14	³⁴Si	⁴¹Si
15	³⁵P	⁴¹P
16	³⁶S	⁴¹S
17	³⁷Cl	⁴¹Cl
18	³⁸Ar	⁴¹Ar
19	³⁹K	⁴¹K
20	⁴⁰Ca	⁴¹Ca
21	⁴¹Sc	⁴¹Sc
22	⁴²Ti	⁴¹Ti
23	⁴³V	⁴¹V
24	⁴⁴Cr	⁴¹Cr
25	⁴⁵Mn
26	⁴⁶Fe
27	⁴⁷Co
28	⁴⁸Ni