(10分)根据下 * * 种元素的第一至第四电离能数据(单位:kJ·mol-1) 元素

题型:填空题

问题:

(10分)根据下 * * 种元素的第一至第四电离能数据(单位:kJ·mol1

元素代号I1I2I3I4
Q2080400061009400
R500460069009500
S7401500770010500
T5801800270011600
U420310044005900
请回答下列问题:

(1)在周期表中,最可能处于同一族的是

A.Q和R                                        B.S和T

C.T和U                                  D.R和U

(2)电解它们的熔融氯化物,阴极电极反应式最可能正确的是

A.U2+2e→U                              B.R2+2e→R

C.S3+3e→S                       D.T3+3e→T

(3)它们的氯化物的化学式,最可能正确的是

A.UCl4                                           B. RCl

C.SCl3                                    D.TCl

(4)S元素最可能是

A.s区元素                                     B.p区元素

C.过渡金属                            D.d区元素

(5)下列元素中,化学性质和物理性质最像Q元素的是

A.硼(1s22s22p1)                          B.铍(1s22s2

C.锂(1s22s1)                       D.氦(1s2

考点:构成物质的粒子—分子、原子、离子元素周期律
题型:填空题
根据短文内容,用方框中单词的恰当形式填空,每个词只能用一次。(10分)
why,because, so,I, with, work, it, invite, but, bad, tell,
 
Dear Joyce,
You must be very busy these days. I called you several times,    小题1:  no one answered. Are you still busy 小题2:  on the report?
I called you because I am having problems with Mom and my friends these days. You know, I am a shy person. That’s   小题3: I have few friends. Last month, some of my classmates   小题4:  me to the Internet café after school. It was a lot of fun  小题5: we could play the latest online games there, and it was the first time that I felt I was not alone anymore. However, my grades were getting   小题6: than ever before, and Mom found out the reason. She got really angry with 小题7: ! She wouldn’t even let me go out with my friends again, so I had to   小题8: them that I couldn’t go out with them any more. My friends laughed at me and even called me a coward (胆小鬼). I couldn’t stand    小题9: , so I went to the Internet café 小题10:  them like before. Mom is really disappointed with me now. I didn’t want to make her sad, but I still want to have my own friends. What should I do?
Last, Mom and I miss you a lot. We hope to hear from you soon.
Your brother
Ben
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