Astatine
Occurrence, isolation & synthesis
OccurrenceAstatine is found in the Earth's crust in uranium ores [3]. The naturally occurring isotopes are 215At (T½ = 10−4 s), 217At (T½ = 3.26 · 10−2 s), 218At (T½ = 1.5 s) and 219At (T½ = 56 s) [3].
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OccurrenceAstatine is found in the Earth's crust in uranium ores [3]. The naturally occurring isotopes are 215At (T½ = 10−4 s), 217At (T½ = 3.26 · 10−2 s), 218At (T½ = 1.5 s) and 219At (T½ = 56 s) [3].
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