Vanadium-64m

Properties and data of the isotope ^64mV.

Contents

See also: List of individual Vanadium isotopes (and general data sources).

General data

Name of the isotope:Vanadium-64m; V-64mSymbol:^64mV or 64m23VMass number A:64 (= number of nucleons)Atomic number Z:23 (= number of protons)Neutrons N:41Nucleon pairing (Z - N):odd - oddNuclear ratio (N/Z ratio):1.7826086956522 (= neutron-proton ratio)Neutron excess (N-Z):18Excitation energy:81.0(7) keVIsotopic mass:63.98248(43) u (atomic weight of Vanadium-64m)Nuclide mass:63.9698629 u (calculated nuclear mass without electrons)Mass excess:-16.31977 MeVMass defect:0.552757292 u (per nucleus)Nuclear binding energy:514.89010095 MeV (per nucleus)
8.04515783 MeV (average binding energy per nucleon)Half-life:1 μsDecay constant λ:693147.18055995 s^-1Specific activity α:6.524020151655 × 10⁺²⁷ Bq g^-1
1.763248689636 × 10⁺¹⁷ Ci g^-1Spin and parity:
(nuclear angular momentum)

Radioactive Decay

Half-life T_½ = 1 μs respectively 1 × 10^-6 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
Iso	⁶⁴V	ca. 100 %

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
⁶⁴V		15(2) ms

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 41) and isobaric (same nucleon number A = 64) with Vanadium-64m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 41	Isobar A = 64
21	⁶²Sc
22	⁶³Ti	⁶⁴Ti
23	⁶⁴V	⁶⁴V
24	⁶⁵Cr	⁶⁴Cr
25	⁶⁶Mn	⁶⁴Mn
26	⁶⁷Fe	⁶⁴Fe
27	⁶⁸Co	⁶⁴Co
28	⁶⁹Ni	⁶⁴Ni
29	⁷⁰Cu	⁶⁴Cu
30	⁷¹Zn	⁶⁴Zn
31	⁷²Ga	⁶⁴Ga
32	⁷³Ge	⁶⁴Ge
33	⁷⁴As	⁶⁴As
34	⁷⁵Se	⁶⁴Se
35	⁷⁶Br
36	⁷⁷Kr
37	⁷⁸Rb
38	⁷⁹Sr
39	⁸⁰Y
40	⁸¹Zr
41	⁸²Nb
42	⁸³Mo
44	⁸⁵Ru