Scandium-38m

Properties and data of the isotope ^38mSc.

Contents

General data

Name of the isotope:Scandium-38m; Sc-38mSymbol:^38mSc or 38m21ScMass number A:38 (= number of nucleons)Atomic number Z:21 (= number of protons)Neutrons N:17Isotopic mass:37.99544(21) u (atomic weight of Scandium-38m)Nuclide mass:37.98392 u (calculated nuclear mass without electrons)Mass excess:-4.24761 MeVMass defect:0.316189244 u (per nucleus)Nuclear binding energy:294.52838365 MeV (per nucleus)
7.75074694 MeV (average binding energy per nucleon)Half-life:Spin and parity:
(nuclear angular momentum)

Radioactive Decay

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
p	³⁷Ca

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
³⁸Sc		300 ns	(2-)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 17) and isobaric (same nucleon number A = 38) with Scandium-38m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

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