Chemistry, 12.12.2019 04:31, abramdent

Which of the following is the best explanation for a covalent bond?

a. electrons simultaneously attracted by more than one nucleus
b. the overlapping of two electron-filled orbitals having different energies
c. the overlapping of unoccupied orbitals of two or more atoms
d. a positive ion attracting negative ions
e. an interaction between outer electrons

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