Question

fluorine has 7 valencs electrons, which charge is its ion likely to have?
5-
5+
1-
1+

Answer 1

Fluorine has 7 valence electrons and needs to gain 1 additional electron to achieve a stable electron configuration, similar to that of the nearest noble gas (neon). When fluorine gains one electron, it becomes negatively charged. Therefore, the most likely charge of a fluorine ion is **1-**.