下图是N、O、F三种元素基态原子电子排布的轨道表示式。试回答下列问题

(1)请认真分析去发现，N、O、F形成氢化物的分子构成，与对应的三种元素基态原子内的电子排布有什么关系？___________________

(2)在下边的方框内，画出C原子基态原子电子排布的轨道表示式。

 (3)根据你发现的规律，对基态C原子形成高度对称的CH₄分子的微观过程提出合理的猜想。

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根据句子意思，用括号中所给汉语提示或英语单词的适当形式填空。(每空一词)

小题1:The __________ of this mountain is 5540 meters. (高度)

小题2:If you want to come, please let us know as soon as ____________(可能的).

小题3:There are __________ of people by the sea. (千)

小题4:The more careful you are, the fewer ____________ you’ll make. (错误)

小题5:Mum is always busy. Last week she __________ three meetings. (出席)

小题6:This piece of advice is very __________. I’ll take it. (use).

小题7:Bad weather sometimes causes ___________ (nature) disasters.

小题8:____________, I could get the last plane ticket to the USA. (luck)

小题9:The twin brothers like keeping secrets to ____________. (they)

小题10:The radio says it will be much ____________ (rain) tomorrow.