EXAMS AND ME
Tuesday 21 December 2021
Chalcogens
Chalcogens
Oxygen, Sulphur, Selenium, Tellurium, Polonium and Livermorium
Livermorium
Livermorium from Lawrence Livermorium Laboratory
Laboratory Created Extremely Radioactive Element
Polonium Chalcogen
Polonium 210
Polonium 210 = Danger
Snapshot
21.12.21
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