Answer:
F (Fluorine) has (8-1 = 7) electrons in outer most shell and so, it will try to bond with an atom which has only 1 electron in its outer most shell.
Step-by-step explanation:
According to Octet rule, most of the atoms are said to be stable if it has 8 electrons in its outermost shell. As already said, Fluorine atom has 7 electrons while it requires 1 more electron to attain stability.
Hence, F atom will try to join another atom with only one electron in outer shell, like H, Li and Na.