【简答题】Fif years ago, I entered the Boston Globe , which was a temple to me then . It wasn’t easy getting hired. I had to fight my way in to a dime-a-word job. But once you were there, I found , you were...
【简答题】下表是元素周期表的一部分。表中所列的字母分别代表一种化学元素。 a b c d e f g h i j k l m n o 试回答下列问题: (1)请写出:元素o的基态原子电子排布式 。 (2)k在空气中燃烧产物的分子构型为 ,中心原子的杂化形式为 ,该分子是 (填“极性”或“非极性”)分子。 (3)含10电子的d的氢化物分子的VSEPR模型为 。元素c、a、e按原子个数1:2:1组成生活中常见有...