硅是重要的半导体材料,构成现代电子工业的基础.请回答下列问题:(1)硅原子中能量最高的电子处在
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(1)原子中,离原子核越远的电子层其能量越高,所以Si原子中M电子层能量最高;该原子中含有3个s轨道、6个p轨道,一共有9个轨道,M层电子占有的原子轨道数为3,故答案为:M;3;(2)硅晶体和金刚石晶体类似都属于原子晶体,硅原子之间以非极性共价键结合,单质硅是正四面体结构,14克单晶硅中存在Si-Si键的数目是
14g |
28g/mol |
(3)SiH4在氧气中燃烧生成二氧化硅和水,方程式为:SiH4+O2
|