Vanadium-40

Properties and data of the isotope ⁴⁰V.

Content

General data

Name of the isotope:Vanadium-40; V-40Symbol:⁴⁰V or 4023VMass number A:40 (= number of nucleons)Atomic number Z:23 (= number of protons)Neutrons N:17Isotopic mass:40.01109(54) u (atomic weight of Vanadium-40)Nuclide mass:39.9984729 u (calculated nuclear mass without electrons)Mass excess:10.33027 MeVMass defect:0.316189308 u (per nucleus)Nuclear binding energy:294.52844327 MeV (per nucleus)
7.36321108 MeV (average binding energy per nucleon)Half-life:Spin and parity:
(nuclear angular momentum)2-Mirror nucleus:Chlorine-40

Radioactive Decay

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
p	³⁹Ti

Parent Nuclides

Direct parent isotope is: ⁴¹Cr.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 17) and isobaric (same nucleon number A = 40) with Vanadium-40. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

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