本题目来源于试卷: Classification of Matter A.1 Periodic Table Elements Classification，类别为 IB化学
[单选题]
What is the formula of 0ot wnp ed-4ke4m kt3-the compound hj wq- - o),dzflif:9lvmd v*)u;f:qfformed between lithium and nitrogen?
A. $LiN_3$
B. $LiN_2$
C. $Li_2N_3$
D. $Li_3N$
参考答案: D
本题详细解析:
Explanation: Lithium is in group 1 and so forms $Li^+$ ions. The formula of the nitride ion is $N^{3−}$as nitrogen is in group 15. For the positive and negative charges to cancel out, three $Li^+$ ions are needed for each $N^{3−}$ ion.
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