The structure is as follows:
In this structure, the total number of electrons is incorrect. There must be a double bond for this structure to be correct.
The error in the given structure is the wrong total of electrons.
Carbon is tetravalent. There are four electrons in the outermost shell of carbon. As shown in the figure, the total number of electrons is incorrect. There are six electrons with carbon in this figure, which is incorrect.
and fluorine contains
electrons in its outermost shell.