词汇 2 The name of ionic compounds (I)Positive ions(cations) Na* sodium ion Fe+ iron (2)ion /ferrous ion Fetiron 3 ion /ferric ion NH ammonium ion (2) Negative irons(anions) (3 )the name of ionic compounds (4) The name of acides 5 2021/2/2021/2/22 5 词汇 ⚫ 2 The name of ionic compounds (1)Positive ions (cations) sodium ion iron(2)ion /ferrous ion iron (3)ion /ferric ion ammonium ion (2) Negative irons (anions) (3) the name of ionic compounds (4) The name of acides 4 4 + + NH4 3+ Fe 3+ Fe 2+ Fe + Na