Input interpretation
Al-33 (aluminum-33)
Decay properties
half-life | 41.7 ms (milliseconds) (41.43 to 41.97 ms) mean lifetime | 60.2 ms (milliseconds) (59.82 to 60.5 ms) decay constant | 16.6 per second specific activity | 3.03×10^11 TBq/g (terabecquerels per gram) width | 1.09×10^-14 eV (electronvolts) decay modes | β^- (electron emission) | β^-n (electron + delayed neutron) final decay products | S-33 (90%) | S-32 (8%)
Decay modes
decay mode | β^- (electron emission) branching ratio | 92% Q-value | 11.9633 MeV (megaelectronvolts) daughter nuclide | Si-33 decay mode | β^-n (electron + delayed neutron) branching ratio | 8.5% Q-value | 7.4802 MeV (megaelectronvolts) daughter nuclide | Si-32
Decay chain
Decay chain
Mass properties
atomic number (Z) | 13 mass number (A) | 33 neutron number | 20 atomic mass | 32.990843336 u (unified atomic mass units) mass excess | -8.529377 MeV (megaelectronvolts) binding energy per nucleon | 8.021586 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
spin parity J^π | 5/2^+ (atomic boson)
Quantum properties