Why do atoms form bonds by donating, accepting or sharing electrons with other atoms?

D.

Bonding gives an atom the same number of electrons as a noble gas.

Explanation:

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Atoms form chemical bonds to make their outer electron shells more stable ... An ionic bond, where one atom essentially donates an electron to another, forms when one atom becomes stable by losing its outer electrons and the other atoms become stable (usually by filling its valence shell) by gaining the electrons.