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handwritten style Al-21 vs P-31

Input interpretation

Al-21 (aluminum-21) | P-31 (phosphorus-31)
Al-21 (aluminum-21) | P-31 (phosphorus-31)

Natural abundance

Al-21 | P-31 0 | 100%
Al-21 | P-31 0 | 100%

Decay properties

| Al-21 | P-31 half-life | 35 ns (0 to 39 ns) | (stable) mean lifetime | 50 ns (-6.675×10^-299 to 51.4 ns) | (stable) decay constant | 2×10^7 per second | 0 per second specific activity | 5.7×10^17 TBq/g | 0 Bq/g width | 1.3×10^-8 eV | 0 eV decay modes | p (proton emission) | final decay products | F-19 (0) | Ne-20 (0) | O-16 (0) | P-31 (100%)
| Al-21 | P-31 half-life | 35 ns (0 to 39 ns) | (stable) mean lifetime | 50 ns (-6.675×10^-299 to 51.4 ns) | (stable) decay constant | 2×10^7 per second | 0 per second specific activity | 5.7×10^17 TBq/g | 0 Bq/g width | 1.3×10^-8 eV | 0 eV decay modes | p (proton emission) | final decay products | F-19 (0) | Ne-20 (0) | O-16 (0) | P-31 (100%)

Decay modes

Al-21

decay mode | p (proton emission) Q-value | 1.26 MeV (megaelectronvolts) daughter nuclide | Mg-20
decay mode | p (proton emission) Q-value | 1.26 MeV (megaelectronvolts) daughter nuclide | Mg-20

P-31

Column[^T, Spacings->1.5]
Column[^T, Spacings->1.5]

Radiation shielding

Radiation shielding
Radiation shielding

Decay chain

Al-21

Decay chain Al-21
Decay chain Al-21

P-31

Decay chain P-31
Decay chain P-31

Mass properties

| Al-21 | P-31 atomic number (Z) | 13 | 15 mass number (A) | 21 | 31 neutron number | 8 | 16 atomic mass | 21.02804 u (unified atomic mass units) | 30.973761629 u (unified atomic mass units) mass excess | 26.119 MeV (megaelectronvolts) | -24.440885 MeV (megaelectronvolts) binding energy per nucleon | 6.343 MeV (megaelectronvolts) | 8.481178 MeV (megaelectronvolts)
| Al-21 | P-31 atomic number (Z) | 13 | 15 mass number (A) | 21 | 31 neutron number | 8 | 16 atomic mass | 21.02804 u (unified atomic mass units) | 30.973761629 u (unified atomic mass units) mass excess | 26.119 MeV (megaelectronvolts) | -24.440885 MeV (megaelectronvolts) binding energy per nucleon | 6.343 MeV (megaelectronvolts) | 8.481178 MeV (megaelectronvolts)
Mass properties
Mass properties

Nearby isotopes

Nearby isotopes
Nearby isotopes

Quantum properties

| Al-21 | P-31 spin parity J^π | 5/2^+ (atomic boson) | 1/2^+ (atomic boson) magnetic moment | (unknown) | 1.1316 μ_N
| Al-21 | P-31 spin parity J^π | 5/2^+ (atomic boson) | 1/2^+ (atomic boson) magnetic moment | (unknown) | 1.1316 μ_N
Quantum properties
Quantum properties

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