(1)N2 ______________________________________________________________;
(2)PCl3_____________________________________________________________;
(3)MgF2_____________________________________________________________;
(4)Na2O_____________________________________________________________;
(5)H2O______________________________________________________________;
(6)NaH______________________________________________________________。
解析:掌握用电子式表示物质形成过程的写法,本题不难作答。
答案:(1)