See also: List of individual Chromium isotopes (and general data sources).
General data
Name of the isotope:Chromium-43; Cr-43Symbol:43Cr or 4324CrMass number A:43 (= number of nucleons)Atomic number Z:24 (= number of protons)Neutrons N:19Nucleon pairing (Z - N):even - oddNuclear ratio (N/Z ratio):0.79166666666667 (= neutron-proton ratio)Neutron excess (N-Z):-5Isotopic mass:42.99788(43) u (atomic weight of Chromium-43)Nuclide mass:42.9847144 u (calculated nuclear mass without electrons)Mass excess:-1.97477 MeVMass defect:0.354554172 u (per nucleus)Nuclear binding energy:330.26508389 MeV (per nucleus) 7.68058335 MeV (average binding energy per nucleon)Separation energy:SN = 16.77(56) MeV (first neutron) SP = 1.64(44) MeV (first proton)Half-life:21.2(7) msDecay constant λ:32.695621724526 s-1Specific activity α:4.579240563972 × 10+23 Bq g-1 12376325848574 Ci g-1Spin and parity: (nuclear angular momentum)(3/2+)Mirror nucleus:Potassium-43Year of discovery:1992
Radioactive Decay
Half-life T½ = 21.2(7) ms respectively 2.12 × 10-2 seconds s.
The following table shows the atomic nuclei that are isotonic (same neutron number N = 19) and isobaric (same nucleon number A = 43) with Chromium-43. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
