Answer:
Step-by-step explanation:
In the Fluorine atom there are 2 electrons in the innermost shell and 7 i the outer shell.
The first shell can only hold 2 electrons, but the pupil placed in 8 electrons.
The second shell can hold up to 8 electrons, but the pupil only placed in 2 electrons.
Flourine only has 9 total electrons, yet there are 10 electrons in the diagram.
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