试题与答案

随着科学的发展,科学家们合成了一些氙的化合物。请回答下列问题。 (1)Xe原子的

题型:填空题

题目:

随着科学的发展,科学家们合成了一些氙的化合物。请回答下列问题。

(1)Xe原子的价电子排布式为_________。稀有气体中只有密度较大的氙能合成出多种化合物,其原因是____________。

A.氙含量比较丰富B.氙原子半径大,电离能小C.氙原子半径小,电离能大

(2)研究报告指出:“关于XePtF6”的化合价有两种可能,经证实不溶于等非极性溶剂。”据此可确定中化学键类型为________。

(3)金属采用“…ABCABC…”型堆积方式,抽出一个晶胞,其正确的是________,

已知金属Pt的密度为则Pt原子的半径为_________pm(Pt的相对原子质量195.1)

(4)氙的含氧化合物主要有,它们都有很强的氧化性,的分子构型是__________,中Xe原子的杂化类型是_______,与分子互为等电子体的离子有___________(填一种)。

答案:

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请阅读下面这篇文章,根据所提供的信息,完成信息卡,把答案写在答题卡指定的位置上。
Life in China
Every day, News on TV, radio and online brings you stories from across China. Have you got a story about life in China? If you do, please put your story here.

Since the winter last year, the haze(雾霾) has happened a lot of times. It has done great harm(伤害) to our daily life. More and more people have to go to see the doctor because the serious disease caused by the haze. Many traffic accidents happened and quite a lot of flights have to be put off just because of the haze weather. On Oct.30, 2013, in 16-car chain collision (连环相撞) on the highway in Tangshan, many people were hurt and some even died. Beijing International Airport canceled or put off nearly 76 flights on Oct.6, 2013 as the result of the weather. (Wu Hai, Shantou)
It’s reported that 293 pedestrians(行人)die of traffic accidents every day in China. I myself ever experienced a very terrible accident.

Early last Thursday morning, I was walking on my way to school as usual. A little boy ran past me. He ran so fast when crossing the street that he didn’t notice a speeding car came round the corner. I was scared and shouted to him to stop, but it was too late. The boy was knocked down by the car. I hurried to the boy, crying for help. The boy was taken to the hospital as soon as the policemen and doctors arrived. Later, I learned the boy died because he lost too much blood.(Li Lan, Guangzhou)
Information card
Main ideas of the two stories
The first story is about air pollution, the second one is about 小题1:____.
Harm that the haze does to our daily life
It may cause 小题2:__and traffic accidents.
Many flights have to 小题3:___.
The number that pedestrians die of traffic accident every day
小题4:____
The reason why the little boy died
He小题5:__ and was hit by a speeding car.
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