The actual boiling point of radon is -61.7ËšC. An estimate would lie midway between -100ËšC and -50ËšC based on the shape of the graph.
Elements in group 1 and group 2 are metals. Atoms of group 1 elements have one electron in their outer shell, and atoms of group 2 elements have two electrons in their outer shell. Elements in groups ...
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