Input interpretation
Zr-101 (zirconium-101) | K-54 (potassium-54)
Decay properties
| Zr-101 | K-54 half-life | 2.3 s (2.17 to 2.43 s) | 10 ms (4.4 to 15.2 ms) mean lifetime | 3.3 s (3.15 to 3.48 s) | 14 ms (7.09 to 21.9 ms) decay constant | 0.3 per second | 71 per second specific activity | 1.8×10^9 TBq/g | 8×10^11 TBq/g width | 2×10^-16 eV | 4.6×10^-14 eV decay modes | β^- (electron emission) | β^- (electron emission) | β^-n (electron + delayed neutron) final decay products | Ru-101 (100%) | Cr-52 (0%) | Cr-53 (0%) | Cr-54 (0%)
Decay modes
Zr-101
decay mode | β^- (electron emission) branching ratio | 100% Q-value | 5.485 MeV (megaelectronvolts) daughter nuclide | Nb-101
K-54
decay mode | β^- (electron emission) branching ratio | 100% Q-value | 18.49 MeV (megaelectronvolts) daughter nuclide | Ca-54 decay mode | β^-n (electron + delayed neutron) Q-value | 14.42 MeV (megaelectronvolts) daughter nuclide | Ca-53
Radiation shielding
| Zr-101 | K-54 lead | 3.49 mm | 7.93 mm portland concrete | 14 mm | 41.7 mm water | 27.9 mm | 87 mm air | 23.5 m | 69.4 m
Decay chain
Zr-101
Decay chain Zr-101
K-54
Decay chain K-54
Mass properties
| Zr-101 | K-54 atomic number (Z) | 40 | 19 mass number (A) | 101 | 54 neutron number | 61 | 35 atomic mass | 100.921140415 u (unified atomic mass units) | 53.9942 u (unified atomic mass units) mass excess | -73.457231 MeV (megaelectronvolts) | -5.403 MeV (megaelectronvolts) binding energy per nucleon | 8.488776 MeV (megaelectronvolts) | 7.896 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
| Zr-101 | K-54 spin parity J^π | 3/2^+ (atomic fermion) | 2^- (atomic fermion)
Quantum properties