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Nucléide | Abondance [%] | Masse | Spin | Demi-vie | Mode de désintégration | Chaîne de désintégration |
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130Ba | 0.101 | 129.906 | 0 | -- | -- | |
131Ba | 0 | 131 | 1/2 | 11.7d | EC, β+ | Afficher |
132Ba | 0.097 | 131.905 | 0 | -- | -- | |
133Ba | 0 | 133 | 1/2 | 10.53y | EC | Afficher |
133Bam | 0 | 133 | 11/2 | 1.621d | IT, EC | Afficher |
134Ba | 2.42 | 133.905 | 0 | -- | -- | |
135Ba | 6.59 | 134.906 | 3/2 | -- | -- | |
135Bam | 0 | 135 | 11/2 | 1.20d | IT | Afficher |
136Ba | 7.81 | 135.905 | 0 | -- | -- | |
137Ba | 11.32 | 137.906 | 3/2 | -- | -- | |
137Bam | 0 | 137 | 11/2 | 2.552m | IT | Afficher |
138Ba | 71.66 | 137.905 | 0 | -- | -- | |
139Ba | 0 | 139 | 7/2 | 1.396h | β- | Afficher |
140Ba | 0 | 140 | 0 | 12.75d | β- | Afficher |
141Ba | 0 | 141 | 3/2 | 18.3m | β- | Afficher |
142Ba | 0 | 142 | 0 | 10.7m | β- | Afficher |
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Origine du nom: | Greek: barys (heavy or dense). |
Description: | Soft, slightly malleable, silvery-white metal. |
Découvert par: | Sir Humphrey Davy |
Année: | 1808 |
Place: | England |
Sources: | Found in barytine (BaSO4) and witherite (BaCO3), never found in pure form due to its reactivity. Must be stored under kerosene to remain pure. |
Utilization(s): | Barite, or barium sulfate (BaSO4), when ground is used as a filter for rubber, plastics, and resins. It is insoluable in water and so is used in X-rays of the digestive system. Barium nitrate, Ba(NO3)2, burns brilliant green and is used in fireworks |
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