The Coulomb force is the force which keeps the molecule together.
Covalent compound (O,H are nonmetals)
Valence of O (O must form an octet): 6
Valence of H: 1
Total valence electrons: 8
Molar mass: 18.02 g/mol
has electronegativity , has electronegativity . Linus Pauling estimated that an electronegativity difference of 1.7 (on the Pauling scale) corresponds to 50% ionic character, so that a difference greater than 50% corresponds to a bond which is predominantly ionic.
Covalent bond– In covalent bonding the elements share electrons equally (approximately).
Ionic bond– In ionic bonding, one element loses electrons while the other gains these electrons, leaving the first element with a positive charge and the second with a negative charge.