Which is the correct lewis structure for fluorine, which is a group 7a element?

The question says,'which is the correct Lewis structure for fluorine, which is a group 7A element. Lewis structure is used to represent the covalent bonding of molecules. Flourine has seven electron in its outermost shell, so the Lewis structure of flourine will have 3 lone pair of dots and a single dot. Each dot represent an electron.

True, the standard unit for volume is liters which can be represented by either a lower case "l" or a capital "l"

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