Input interpretation
![Ce-142 (cerium-142) | Rn-198 (radon-198)](../image_source/05cd5f8da80d0dad6bc26c618f0f4a68.png)
Ce-142 (cerium-142) | Rn-198 (radon-198)
Natural abundance
![Ce-142 | Rn-198 11.114% | 0](../image_source/573791058f529586b9eac3f768b20233.png)
Ce-142 | Rn-198 11.114% | 0
Decay properties
![| Ce-142 | Rn-198 half-life | 50 quadrillion yr (9.2×10^8 to ∞ s) | 65 ms (61 to 69.1 ms) mean lifetime | 70 quadrillion yr (1.33×10^9 to ∞ s) | 94 ms (88.6 to 98.9 ms) decay constant | 4×10^-25 per second | 11 per second specific activity | 0.002 Bq/g | 3.2×10^10 TBq/g width | 2×10^-40 eV | 7×10^-15 eV decay modes | α (alpha emission) | 2β^- (double beta decay) | α (alpha emission) | β^+ (positron emission) final decay products | Ce-142 (100%) | Ba-138 (0) | Nd-142 (0) | W-182 (100%) | Pt-194 (0.9%) | Hf-178 (2×10^-10) | Hg-198 (0) | Os-190 (0)](../image_source/1f6364a5570418c1761351efe32f308b.png)
| Ce-142 | Rn-198 half-life | 50 quadrillion yr (9.2×10^8 to ∞ s) | 65 ms (61 to 69.1 ms) mean lifetime | 70 quadrillion yr (1.33×10^9 to ∞ s) | 94 ms (88.6 to 98.9 ms) decay constant | 4×10^-25 per second | 11 per second specific activity | 0.002 Bq/g | 3.2×10^10 TBq/g width | 2×10^-40 eV | 7×10^-15 eV decay modes | α (alpha emission) | 2β^- (double beta decay) | α (alpha emission) | β^+ (positron emission) final decay products | Ce-142 (100%) | Ba-138 (0) | Nd-142 (0) | W-182 (100%) | Pt-194 (0.9%) | Hf-178 (2×10^-10) | Hg-198 (0) | Os-190 (0)
Decay modes
Ce-142
![decay mode | α (alpha emission) Q-value | 1.29824 MeV (megaelectronvolts) daughter nuclide | Ba-138 decay mode | 2β^- (double beta decay) Q-value | 1.41672 MeV (megaelectronvolts) daughter nuclide | Nd-142](../image_source/e1f0429714d3fb888dc30fe71becf927.png)
decay mode | α (alpha emission) Q-value | 1.29824 MeV (megaelectronvolts) daughter nuclide | Ba-138 decay mode | 2β^- (double beta decay) Q-value | 1.41672 MeV (megaelectronvolts) daughter nuclide | Nd-142
Rn-198
![decay mode | α (alpha emission) branching ratio | 99% Q-value | 7.3493 MeV (megaelectronvolts) daughter nuclide | Po-194 decay mode | β^+ (positron emission) branching ratio | 1% Q-value | 4.4191 MeV (megaelectronvolts) daughter nuclide | At-198](../image_source/095cf453599cf3280e1676e121159b16.png)
decay mode | α (alpha emission) branching ratio | 99% Q-value | 7.3493 MeV (megaelectronvolts) daughter nuclide | Po-194 decay mode | β^+ (positron emission) branching ratio | 1% Q-value | 4.4191 MeV (megaelectronvolts) daughter nuclide | At-198
Radiation shielding
![Radiation shielding](../image_source/dc9df412e1b9f8df85c3bd6ac7171107.png)
Radiation shielding
Decay chain
Ce-142
![Decay chain Ce-142](../image_source/2825df81da6af548d6a1da82d2aa1ff4.png)
Decay chain Ce-142
Rn-198
![Decay chain Rn-198](../image_source/fa5b7170bac607fb2c79d5ba9b222782.png)
Decay chain Rn-198
Mass properties
![| Ce-142 | Rn-198 atomic number (Z) | 58 | 86 mass number (A) | 142 | 198 neutron number | 84 | 112 atomic mass | 141.909244205 u (unified atomic mass units) | 197.998678663 u (unified atomic mass units) mass excess | -84.538479 MeV (megaelectronvolts) | -1.230817 MeV (megaelectronvolts) binding energy per nucleon | 8.347108 MeV (megaelectronvolts) | 7.737726 MeV (megaelectronvolts)](../image_source/4cff6be370600bbfebb99b916b8b34aa.png)
| Ce-142 | Rn-198 atomic number (Z) | 58 | 86 mass number (A) | 142 | 198 neutron number | 84 | 112 atomic mass | 141.909244205 u (unified atomic mass units) | 197.998678663 u (unified atomic mass units) mass excess | -84.538479 MeV (megaelectronvolts) | -1.230817 MeV (megaelectronvolts) binding energy per nucleon | 8.347108 MeV (megaelectronvolts) | 7.737726 MeV (megaelectronvolts)
![Mass properties](../image_source/ea24f99bdc4d09b648daa15c687ac74a.png)
Mass properties
Nearby isotopes
![Nearby isotopes](../image_source/e83b5963ff5c9b433473f6e519a56909.png)
Nearby isotopes
Quantum properties
![| Ce-142 | Rn-198 spin parity J^π | 0^+ (atomic boson) | 0^+ (atomic boson) magnetic moment | 0 μ_N | 0 μ_N](../image_source/c00d81f613a8b94eab7aea17b35e6e38.png)
| Ce-142 | Rn-198 spin parity J^π | 0^+ (atomic boson) | 0^+ (atomic boson) magnetic moment | 0 μ_N | 0 μ_N
![Quantum properties](../image_source/01581394ce3dadd0280b72f2170340d8.png)
Quantum properties