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How many Fluorine atoms are needed to accept the electrons of one Ca atom?
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2
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4

Sagot :

Trancescient

2 F atoms

Explanation:

A Ca atom has a valence number of +2, which means that when ionized, it will give up two electrons. In turn, a F atom has a valence number of -1, which means it can only accept 1 electron when ionized. So to accommodate the two electrons from Ca atom, we need 2 F atoms.

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