Input interpretation
![Ar-31 (argon-31)](../image_source/fdf1ec9ea513a04594295da502f35508.png)
Ar-31 (argon-31)
Decay properties
![half-life | 14.4 ms (milliseconds) (13.78 to 17 ms) mean lifetime | 20.8 ms (milliseconds) (19.88 to 21.67 ms) decay constant | 48.1 per second specific activity | 9.34×10^11 TBq/g (terabecquerels per gram) width | 3.17×10^-14 eV (electronvolts) decay modes | β^+p (positron + delayed proton) | β^+ (positron emission) | β^+2p (positron + delayed 2 protons) | β^+3p (positron + delayed 3 protons) | β^+pα (positron + delayed proton, α) | β^+α (positron + delayed α) final decay products | Si-30 (63%) | P-31 (28%) | Si-29 (7.2%) | Si-28 (1.4%) | Mg-26 (0.38%) | Al-27 (0.03%)](../image_source/9f7e3da938038ef0d6b06e52a27285eb.png)
half-life | 14.4 ms (milliseconds) (13.78 to 17 ms) mean lifetime | 20.8 ms (milliseconds) (19.88 to 21.67 ms) decay constant | 48.1 per second specific activity | 9.34×10^11 TBq/g (terabecquerels per gram) width | 3.17×10^-14 eV (electronvolts) decay modes | β^+p (positron + delayed proton) | β^+ (positron emission) | β^+2p (positron + delayed 2 protons) | β^+3p (positron + delayed 3 protons) | β^+pα (positron + delayed proton, α) | β^+α (positron + delayed α) final decay products | Si-30 (63%) | P-31 (28%) | Si-29 (7.2%) | Si-28 (1.4%) | Mg-26 (0.38%) | Al-27 (0.03%)
Decay modes
![decay mode | β^+p (positron + delayed proton) branching ratio | 63% daughter nuclide | S-30 decay mode | β^+ (positron emission) branching ratio | 28% Q-value | 17.338 MeV (megaelectronvolts) daughter nuclide | Cl-31 decay mode | β^+2p (positron + delayed 2 protons) branching ratio | 7.2% daughter nuclide | P-29 decay mode | β^+3p (positron + delayed 3 protons) branching ratio | 1.4% daughter nuclide | Si-28 decay mode | β^+pα (positron + delayed proton, α) branching ratio | 0.38% daughter nuclide | Si-26 decay mode | β^+α (positron + delayed α) branching ratio | 0.03% daughter nuclide | P-27](../image_source/df19fe58e002d54611df54032a0ddd8b.png)
decay mode | β^+p (positron + delayed proton) branching ratio | 63% daughter nuclide | S-30 decay mode | β^+ (positron emission) branching ratio | 28% Q-value | 17.338 MeV (megaelectronvolts) daughter nuclide | Cl-31 decay mode | β^+2p (positron + delayed 2 protons) branching ratio | 7.2% daughter nuclide | P-29 decay mode | β^+3p (positron + delayed 3 protons) branching ratio | 1.4% daughter nuclide | Si-28 decay mode | β^+pα (positron + delayed proton, α) branching ratio | 0.38% daughter nuclide | Si-26 decay mode | β^+α (positron + delayed α) branching ratio | 0.03% daughter nuclide | P-27
Decay chain
![Decay chain](../image_source/7bebaab80b0a2b392d5db9a4ea3e5442.png)
Decay chain
Mass properties
![atomic number (Z) | 18 mass number (A) | 31 neutron number | 13 atomic mass | 31.012123 u (unified atomic mass units) mass excess | 11.293 MeV (megaelectronvolts) binding energy per nucleon | 7.253 MeV (megaelectronvolts)](../image_source/135dbd3939efae7bde34e5ee82be4ad7.png)
atomic number (Z) | 18 mass number (A) | 31 neutron number | 13 atomic mass | 31.012123 u (unified atomic mass units) mass excess | 11.293 MeV (megaelectronvolts) binding energy per nucleon | 7.253 MeV (megaelectronvolts)
![Mass properties](../image_source/6c412a086d6fef8c11fd81e0ef06b98c.png)
Mass properties
Nearby isotopes
![Nearby isotopes](../image_source/1d53f2155b093e6240c3c84dbad9834e.png)
Nearby isotopes
Quantum properties
![spin parity J^π | 5/2^+ (atomic fermion)](../image_source/71f77e89a08682aef17fb92c25faf597.png)
spin parity J^π | 5/2^+ (atomic fermion)
![Quantum properties](../image_source/d224bc7bf81daf1fff4b3946e0cf48a8.png)
Quantum properties