Two atoms can share two electrons {covalent bond}|, which spend most time between the atomic nuclei and share a bonding orbital. Molecular electron orbitals fill with electrons using same rules as for filling atomic electron orbitals. Bonding orbitals fill before antibonding orbitals. Covalent bonding fills both atoms' outer shells.
antibonding
Shared electrons can spend most time outside the atomic nuclei on line between nuclei, in antibonding orbitals. Outside electrons pull nuclei apart and so oppose covalent chemical bonding. Net bond number equals (bonding electrons - antibonding electrons) / 2.
factor
Atoms with weak electric forces make covalent bonds. Atoms with weak electric forces can gain electrons to complete shell. Atoms with weak electric forces can lose electrons to empty shell.
Physical Sciences>Chemistry>Inorganic>Chemical Bond>Kinds>Covalent
5-Chemistry-Inorganic-Chemical Bond-Kinds-Covalent
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Date Modified: 2022.0224