Input interpretation
He-6 (helium-6) | Mg-38 (magnesium-38)
Decay properties
| He-6 | Mg-38 half-life | 806.7 ms (805.06 to 808.34 ms) | 260 ns (2.57×10^-7 to ∞ s) mean lifetime | 1.164 s (1.1616 to 1.166 s) | 375 ns (3.7×10^-7 to ∞ s) decay constant | 0.8591 per second | 2.67×10^6 per second specific activity | 8.596×10^10 TBq/g | 4.22×10^16 TBq/g width | 5.656×10^-16 eV | 1.22×10^-9 eV decay modes | β^- (electron emission) | β^-d (electron + delayed deuteron) | β^- (electron emission) final decay products | Li-6 (100%) | He-4 (2.8×10^-4%) | Ar-38 (0%) | Cl-37 (0%)
Decay modes
He-6
decay mode | β^- (electron emission) branching ratio | 100% Q-value | 3.508313 MeV (megaelectronvolts) daughter nuclide | Li-6 decay mode | β^-d (electron + delayed deuteron) branching ratio | 2.8×10^-4% daughter nuclide | He-4
Mg-38
decay mode | β^- (electron emission) Q-value | 18.946 MeV (megaelectronvolts) daughter nuclide | Al-38
Radiation shielding
| He-6 lead | 2.41 mm portland concrete | 9 mm water | 17.8 mm air | 15.2 m
Decay chain
He-6
Decay chain He-6
Mg-38
Decay chain Mg-38
Mass properties
| He-6 | Mg-38 atomic number (Z) | 2 | 12 mass number (A) | 6 | 38 neutron number | 4 | 26 atomic mass | 6.018889124 u (unified atomic mass units) | 38.03757 u (unified atomic mass units) mass excess | 17.595106 MeV (megaelectronvolts) | 34.996 MeV (megaelectronvolts) binding energy per nucleon | 4.878017 MeV (megaelectronvolts) | 6.903 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
| He-6 | Mg-38 spin parity J^π | 0^+ (atomic boson) | 0^+ (atomic boson) magnetic moment | 0 μ_N | 0 μ_N
Quantum properties