An electron shell

has nothing to do with covalent bonds

is unstable if not completely full

describes the number of protons in an atom

has 5 electrons

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Introvert23 Introvert23 · Answer 1 · 2021-09-13T18:29:14+02:00

Answer:

correct answer is Beta.

Explanation:

because the electrons in any shell tend to excite or leave that shell even in some cases they leave the atom if shell is incomplete.

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