3 electrons as the configuration for fluorine (7F) is 1s2-2s2-2p3-
Fluorine and Chlorine are in the 7th group. They have 7 electrons in outer shell.
7 electrons
Fluorine has 9 in total. 7 in the outermost shell
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The highest energy shell of Fluorine is 2nd shell which contains 7 electrons just like other halogens.
7Fluorine has 7 electrons in the outer level.
A fluorine atom has seven unshared electrons in its outer most shell (valence shell).
One
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One
It is in Group 7 on the Periodic table which means it already has 7in its outer shell. The shell needs 8 to be complete so fluorine requires 1 more electron which it gains through ionic or covalent bonding.
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