Is it a covalent bond or an ionic bond?

Answer 1

a covalent bond is a bond between two nonmetals. the electrons are "shared" between the two atoms. example: H2O. an ionic bond forms between a metal and nonmetal. in an ionic bond, the electrons aren't shared, but are transferred from the metal to the nonmetal, leaving the metal with a positive charge and the nonmetal with a negative charge. examples: MgO, NaCl.