Chemical bonds

Ionic, Covalent, and Metallic

Ionic Bonding- a bond between a nonmetal and metal.

                           -Happens when an atom loses an electron

                           -Dissolves in water; doesn't melt; conducts except in a solid state

                             Example-LiF (Lithium Fluoride), NaCl (Sodium Chloride)

Covalent Bonding-a bond between 2 nonmetals

                                  -Non polar covalent bond are "equal"

                                  -Polar covalent bonds are "unequal"

                                  -Happens when 2 atoms share an electron

                                  -Low melting point; never conducts

                                    Examples-CO2 (carbon dioxide), H2O (water)

Metallic bonds-bonds between 2 metals

                            -Happens when a positively charged nuclei is attracted to an electron

                            -High melting point; does not dissolve; always conducts

                              Example- Cu+Zn (brass)

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