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...Think of some properties salt forms crystals brittle hard solid high melting and boiling point an electrolyte conducts electricity in water ionic compounds nacl or table is compound form from bonds formed by electrostatic attraction positive negative ions are called cations anions another frequently used description for that they when electrons transferred between metals nonmetals polyatomic ammonium a ion covalently bonded has lost gained electron s the acts as unit one thing never change any part if you subscripts entire determining formulas write element symbols involved bonding k o next oxidation numbers above now move only across to other symbol lower right corner become ko with ca po must use parentheses around there more than them...