Input interpretation
![Er-170 (erbium-170) | Ac-226 (actinium-226)](../image_source/9f1586c82b4be6d189ec9fe930be9647.png)
Er-170 (erbium-170) | Ac-226 (actinium-226)
Natural abundance
![Er-170 | Ac-226 14.91% | 0](../image_source/8939e7a65f02deb000a9dbc138e31336.png)
Er-170 | Ac-226 14.91% | 0
Decay properties
![| Er-170 | Ac-226 half-life | (stable) | 29.36 h (29.21 to 29.4919 h) mean lifetime | (stable) | 42.36 h (42.197 to 42.5475 h) decay constant | 0 per second | 6.557×10^-6 per second specific activity | 0 Bq/g | 17470 TBq/g width | 0 eV | 4.315×10^-21 eV decay modes | 2β^- (double beta decay) | α (alpha emission) | β^- (electron emission) | ϵ (electron capture) | α (alpha emission) final decay products | Er-170 (100%) | Er-166 (0) | Yb-170 (0) | Pb-206 (100%) | Tl-205 (3×10^-9) | Pb-208 (2.5×10^-10)](../image_source/953d8b1065c1684f9c89629ad65dd3aa.png)
| Er-170 | Ac-226 half-life | (stable) | 29.36 h (29.21 to 29.4919 h) mean lifetime | (stable) | 42.36 h (42.197 to 42.5475 h) decay constant | 0 per second | 6.557×10^-6 per second specific activity | 0 Bq/g | 17470 TBq/g width | 0 eV | 4.315×10^-21 eV decay modes | 2β^- (double beta decay) | α (alpha emission) | β^- (electron emission) | ϵ (electron capture) | α (alpha emission) final decay products | Er-170 (100%) | Er-166 (0) | Yb-170 (0) | Pb-206 (100%) | Tl-205 (3×10^-9) | Pb-208 (2.5×10^-10)
Decay modes
Er-170
![decay mode | 2β^- (double beta decay) Q-value | 654.35 keV (kiloelectronvolts) daughter nuclide | Yb-170 decay mode | α (alpha emission) Q-value | 50.6 keV (kiloelectronvolts) daughter nuclide | Dy-166](../image_source/ad0a6f6bd8ce51b838d36cbe41c8623b.png)
decay mode | 2β^- (double beta decay) Q-value | 654.35 keV (kiloelectronvolts) daughter nuclide | Yb-170 decay mode | α (alpha emission) Q-value | 50.6 keV (kiloelectronvolts) daughter nuclide | Dy-166
Ac-226
![decay mode | β^- (electron emission) branching ratio | 83% Q-value | 1.11315 MeV (megaelectronvolts) daughter nuclide | Th-226 decay mode | ϵ (electron capture) branching ratio | 17% Q-value | 641.11 keV (kiloelectronvolts) daughter nuclide | Ra-226 decay mode | α (alpha emission) branching ratio | 6×10^-5 Q-value | 5.536 MeV (megaelectronvolts) daughter nuclide | Fr-222](../image_source/1bd92b5657a3060553cfa202a5bc15c7.png)
decay mode | β^- (electron emission) branching ratio | 83% Q-value | 1.11315 MeV (megaelectronvolts) daughter nuclide | Th-226 decay mode | ϵ (electron capture) branching ratio | 17% Q-value | 641.11 keV (kiloelectronvolts) daughter nuclide | Ra-226 decay mode | α (alpha emission) branching ratio | 6×10^-5 Q-value | 5.536 MeV (megaelectronvolts) daughter nuclide | Fr-222
Radiation shielding
![Radiation shielding](../image_source/ba895d858dcbccd36efb5bf3e4a1dcdc.png)
Radiation shielding
Decay chain
Er-170
![Decay chain Er-170](../image_source/4f3a67ff149488b67ff59435bc866a68.png)
Decay chain Er-170
Ac-226
![Decay chain Ac-226](../image_source/b618ea929464b0006ed2fe81da6cbf45.png)
Decay chain Ac-226
Mass properties
![| Er-170 | Ac-226 atomic number (Z) | 68 | 89 mass number (A) | 170 | 226 neutron number | 102 | 137 atomic mass | 169.935464312 u (unified atomic mass units) | 226.026098089 u (unified atomic mass units) mass excess | -60.114606 MeV (megaelectronvolts) | 24.310214 MeV (megaelectronvolts) binding energy per nucleon | 8.111994 MeV (megaelectronvolts) | 7.655658 MeV (megaelectronvolts)](../image_source/17240155b3cf813fe1211881816badae.png)
| Er-170 | Ac-226 atomic number (Z) | 68 | 89 mass number (A) | 170 | 226 neutron number | 102 | 137 atomic mass | 169.935464312 u (unified atomic mass units) | 226.026098089 u (unified atomic mass units) mass excess | -60.114606 MeV (megaelectronvolts) | 24.310214 MeV (megaelectronvolts) binding energy per nucleon | 8.111994 MeV (megaelectronvolts) | 7.655658 MeV (megaelectronvolts)
![Mass properties](../image_source/3d718a634c8cbdbee591fef995ac4e3c.png)
Mass properties
Nearby isotopes
![Nearby isotopes](../image_source/20936a1e880ea7f01935935e149efbf6.png)
Nearby isotopes
Quantum properties
![| Er-170 | Ac-226 spin parity J^π | 0^+ (atomic boson) | 1^- (atomic fermion) magnetic moment | 0 μ_N | (unknown)](../image_source/9a2b808e48b482734798993fed6f77f3.png)
| Er-170 | Ac-226 spin parity J^π | 0^+ (atomic boson) | 1^- (atomic fermion) magnetic moment | 0 μ_N | (unknown)
![Quantum properties](../image_source/cc0734ca875ebf88aa16eba4beab7b21.png)
Quantum properties