Question

when an electron adds on F atom it becomes
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Answer 1

If atoms gain electrons, they become negative ions, or anions. Consider the example of fluorine (see Figure below). A fluorine atom has nine protons and nine electrons, so it is electrically neutral. If a fluorine atom gains an electron, it becomes a fluoride ion with an electric charge of -1.

Answer 2

Answer:

Explanation:

when an electron adds on F atom it becomes F-

its electronic configuration becomes 2 8

and it becomes stable

more detailed answer:

it becomes  $1s^{2} 2s^{2} 2p^{6}$

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