II) name three elements which forms the oxides with the formula R2O7
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Explanation:
The metalloids can be defined as those elements which exhibit characteristics of both metals and nonmetals. They are all solids, but not lustrous, and conduct heat and electricity moderately well.
The six metalloids treated here are listed below with chemical symbol of each.
boron (B)
Silicon (Si)
Germanium (Ge)
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