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Question
Polonium has the half-Life of ______.
Options
13.8 days
12 days
5 days
102 days
Solution
Polonium has the half-Life of 13.8 days.
Explanation:
At normal temperatures, oxygen is a gas, whereas the other elements are solids. Nonmetals include oxygen and sulphur, metalloids like selenium and tellurium, and metals like polonium. Polonium has a half-life of 13.8 days and is radioactive. With increasing atomic numbers, melting and boiling points rise. All of the elements in Group 16 are allotropy.
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