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When one atom of sodium (Na) combines with one atom of fluorine (F), they form the compound sodium fluoride (NaF). Which of the following best describes the arrangement of valence electrons in a bond between Na and F?
The valence electrons are shared equally between Na and F.
The valence electrons spend more time around the atom of Na.
The valence electrons spend more time around the atom of F.
The valence electrons are given up by the Na and gained by the F.

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abril4
Na is a cation (positive) and F is a anion (negative) this is an ionic bond. In a ionic bond the cation loses its valence electrons to give them to the anion. In this case Na will give its valence electron to F so F can complete its octet:)
The valence electrons spend more time around the atom of F.

Hope this helps!! (If not sorry!)

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