下表为元素周期表中第三周期元素的部分相关信息.下列叙述正确的

下表为元素周期表中第三周期元素的部分相关信息.下列叙述正确的是(  )

元素名称 钠 镁 铝 硅 磷 硫 氯 氩

元素符号    Si P S  Ar

原子结构示意图        

  A. 镁的元素符号为mg

  B. 铝原子容易失去电子形成Al3+

  C. 硅原子具有稳定结构

  D. 钠和硫两种元素组成物质的化学式为NaS

 

答案

 B

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