Input interpretation
Zr-90 (zirconium-90) | Zr-91 (zirconium-91)
Natural abundance
Zr-90 | Zr-91 51.45% | 11.22%
Radiation shielding
Radiation shielding
Mass properties
| Zr-90 | Zr-91 atomic number (Z) | 40 | 40 mass number (A) | 90 | 91 neutron number | 50 | 51 atomic mass | 89.904704416 u (unified atomic mass units) | 90.905645767 u (unified atomic mass units) mass excess | -88.767265 MeV (megaelectronvolts) | -87.890402 MeV (megaelectronvolts) binding energy per nucleon | 8.70991 MeV (megaelectronvolts) | 8.693257 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
| Zr-90 | Zr-91 spin parity J^π | 0^+ (atomic boson) | 5/2^+ (atomic fermion) magnetic moment | 0 μ_N | -1.30362 μ_N electric quadrupole moment | (unknown) | -0.206 eb (electron barns)
Quantum properties