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: Illustrating the formation of molecules like Cl2cap C l sub 2 H2Ocap H sub 2 cap O NaClcap N a cap C l Tips for Success

: When an atom becomes a cation (positive ion), it loses electrons; an anion (negative ion) gains them. : Illustrating the formation of molecules like Cl2cap

Most versions of this work are divided into two variants, each containing: it loses electrons

: Remember that for main-group elements, the group number indicates the number of valence electrons. : Illustrating the formation of molecules like Cl2cap