Input interpretation
Al-40 (aluminum-40)
Decay properties
half-life | 260 ns (nanoseconds) (2.57×10^-7 to ∞ s) mean lifetime | 375 ns (nanoseconds) (3.7×10^-7 to ∞ s) decay constant | 2.67×10^6 per second specific activity | 4.01×10^16 TBq/g (terabecquerels per gram) width | 1.22×10^-9 eV (electronvolts) decay modes | β^- (electron emission) | β^-n (electron + delayed neutron) final decay products | Ar-38 (0) | Ar-40 (0) | K-39 (0)
Decay modes
decay mode | β^- (electron emission) Q-value | 23.828 MeV (megaelectronvolts) daughter nuclide | Si-40 decay mode | β^-n (electron + delayed neutron) Q-value | 19.296 MeV (megaelectronvolts) daughter nuclide | Si-39
Decay chain
Decay chain
Mass properties
atomic number (Z) | 13 mass number (A) | 40 neutron number | 27 atomic mass | 40.03145 u (unified atomic mass units) mass excess | 29.295 MeV (megaelectronvolts) binding energy per nucleon | 7.085 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes