Input interpretation
Be-11 (beryllium-11) | Ca-53 (calcium-53)
Decay properties
| Be-11 | Ca-53 half-life | 13.81 s (13.728 to 13.892 s) | 90 ms (67 to 106 ms) mean lifetime | 19.92 s (19.807 to 20.041 s) | 130 ms (108 to 153 ms) decay constant | 0.0502 per second | 7.7 per second specific activity | 2.743×10^9 TBq/g | 8.7×10^10 TBq/g width | 3.304×10^-17 eV | 5.1×10^-15 eV decay modes | β^- (electron emission) | β^-α (electron + delayed α) | β^- (electron emission) | β^-n (electron + delayed neutron) final decay products | B-11 (97%) | Li-7 (2.9%) | Cr-53 (70%) | Cr-52 (30%)
Decay modes
Be-11
decay mode | β^- (electron emission) branching ratio | 97% Q-value | 11.50613 MeV (megaelectronvolts) daughter nuclide | B-11 decay mode | β^-α (electron + delayed α) branching ratio | 2.9% Q-value | 2.84101 MeV (megaelectronvolts) daughter nuclide | Li-7
Ca-53
decay mode | β^- (electron emission) branching ratio | 70% Q-value | 9.725 MeV (megaelectronvolts) daughter nuclide | Sc-53 decay mode | β^-n (electron + delayed neutron) branching ratio | 30% Q-value | 4.387 MeV (megaelectronvolts) daughter nuclide | Sc-52
Radiation shielding
Radiation shielding
Decay chain
Be-11
Decay chain Be-11
Ca-53
Decay chain Ca-53
Mass properties
| Be-11 | Ca-53 atomic number (Z) | 4 | 20 mass number (A) | 11 | 53 neutron number | 7 | 33 atomic mass | 11.021657749 u (unified atomic mass units) | 52.97005 u (unified atomic mass units) mass excess | 20.174064 MeV (megaelectronvolts) | -27.898 MeV (megaelectronvolts) binding energy per nucleon | 5.952822 MeV (megaelectronvolts) | 8.302 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
| Be-11 spin parity J^π | 1/2^+ (atomic fermion)
Quantum properties