三硫化四磷用于制造火柴及火柴盒摩擦面,分子结构如图所示. 下

三硫化四磷用于制造火柴及火柴盒摩擦面,分子结构如图所示.

下列有关三硫化四磷的说法中正确的是(   

A.该物质中磷元素的化合价为+3

B.该物质22 g含硫原子的数目约为1.806×1023

C.该物质分子结构中SP最外层电子数均不为8

D.该物质分子中不含非极性共价键

答案

B

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