Vanadium-42

Properties and data of the isotope ⁴²V.

Contents

General Data

Radioactive Decay

Parent Nuclides

Isotones und Isobares

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

General data

Name of the isotope:Vanadium-42; V-42Symbol:⁴²V or 4223VMass number A:42 (= number of nucleons)Atomic number Z:23 (= number of protons)Neutrons N:19Nucleon pairing (Z - N):odd - oddNuclear ratio (N/Z ratio):0.82608695652174 (= neutron-proton ratio)Neutron excess (N-Z):-4Isotopic mass:41.99182(21) u (atomic weight of Vanadium-42)Nuclide mass:41.9792029 u (calculated nuclear mass without electrons)Mass excess:-7.61962 MeVMass defect:0.35278914000001 u (per nucleus)Nuclear binding energy:328.62096718 MeV (per nucleus)
7.82430874 MeV (average binding energy per nucleon)Separation energy:S_N = 16.01(28) MeV (first neutron)Half-life:55 nsDecay constant λ:12602676.010181 s^-1Specific activity α:1.851099759645 × 10⁺²⁹ Bq g^-1
5.002972323365 × 10⁺¹⁸ Ci g^-1Spin and parity:
(nuclear angular momentum)2-~Mirror nucleus:Potassium-42

Radioactive Decay

Half-life T_½ = 55 ns respectively 5.5 × 10^-8 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
p	⁴¹Ti	?

Parent Nuclides

Direct parent isotope is: ⁴²Cr.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 19) and isobaric (same nucleon number A = 42) with Vanadium-42. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

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