问答题
Write the formula of binary compound of fluorine with each main group element in the fourth period of the periodic table.
【正确答案】
KF, CaF
2
, GaF
3
, GeF
4
, ASF
3
or AsF
5
, SeF
2
or SeF
6
, BrF or BrF
5
, KrF
2
【答案解析】
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