摘要：B 13.D 14.D 15.D 16.C 17.B 18.C 19.D 20.D
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下表是元素周期表中的部分信息，A、B、C、D分别是4种粒子的结构示意图．请根据图中信息及相关要求真空．
（1）硫元素的原子的核外电子数为______．
（2）A、B、C、D 4种粒子中，易得到电子，形成稳定结构的是______（填字母序号）．
（3）某离子带2个单位正电荷，其结构示意图如图
，该离子的符号是______．
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| 3 Li 锂 |
4 Be 铍 |
5 B 硼 |
6 C 碳 |
7 N 氮 |
8 O 氧 |
9 F 氟 |
10 Ne 氖 |
| 11 Na 钠 |
12 镁 Mg |
13 Al 铝 |
14 Si 硅 |
15 P 磷 |
16 S 硫 |
17 Cl 氯 |
18 Ar 氩 |
（1）硫元素的原子的核外电子数为______．
（2）A、B、C、D 4种粒子中，易得到电子，形成稳定结构的是______（填字母序号）．
（3）某离子带2个单位正电荷，其结构示意图如图
，该离子的符号是______．
下表列出了1-18号元素的原子序数和元素符号：| 原子序数 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 元素符号 | H | He | Li | Be | B | C | N | O | F |
| 原子序数 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| 元素符号 | Ne | Na | Mg | Al | Si | P | S | Cl | Ar |
（1）1一18号元素中属于稀有气体元素的有He、Ne、
Ar
Ar
（填元素符号）．（2）10一18号元素中属于金属元素的有
5
5
种．（3）如图为某粒子的结构示意图，当x与y满足
x=10+y
x=10+y
的条件时，该粒子为原子．（4）具有相同原子数和电子数的分子或离子叫等电子体，等电子体具有相似的结构和性质．下列各组粒子中属于等电子体的是
B
B
（填字母序号）．A．NO和O2 B．CO和N2 C．SO2和CO2 D．Na+和OH-．
完型填空（共20小题；每小题1分，满分20分）
阅读下面短文，掌握其大意，然后从四个选项（A、B、C和D）中，选出最佳选项。
"Hey, Tahlia! How's the model?"
I had just taken a bite of my hot dog __21__ I heard a familiar voice yelling at me from across the crowded school yard. I saw a group of popular girls who were all __22__.
"What kind of __23_ are you going to do? An ad for a Frankenstein movie?" More laughter. My stomach twisted into a tight knot. How could they humiliate (羞辱) me like this, __24__ the entire school? As I walked into the cafeteria, I __25__ the dark scars on my right hand.
At 9 months old, I knocked over a tea pot and dumped boiling water allover my hands and stomach. My parents __26__ me to the hospital, but I had to have skin graft (移植) operation. I was in so much pain! But what __27__ me most were the cruel things people said about how I looked, __28__ that day at lunch.
The girls were being supermean to me because they'd heard I was considering doing some modeling. A close friend had suggested that I shouldn't let my scars limit me and that I might __29__ a good model.
But after that __30__ at school, I was sure I'd made a huge mistake. Upon arriving home, I covered the mirror with a blanket, fell on my bed and sobbed.
The next day, I __31__ myself to go to school. At lunch my best friend Jesse tried to encourage me: "You can't __32_ forever, Tahlia. So what if you have a few scars? Just go outside and show them that you're just as good as they are." Although I knew he was right, I couldn’t __33__ standing up for myself like that.
However, that night as I sat on the bed, my friend's words replayed in my mind. I'm __34__ hiding from myself, I thought. How stupid! Slowly, I stood up, walked over to the __35__, and tossed the blanket aside. There, in the mirror I saw a slim, dark-haired, blue-eyed girl, looking just fine, __36__ with a few scars.
The next day I wore a comfortable T-shirt to school. What's more, I had lunch outside the cafeteria, __37__ beside those mean girls. They were shocked that I should dare to walk into their territory. I felt __38_ too—free and happy.
Sometimes people still look at me strangely. They __39_ and stare, but I don't let it get to me. I have applied to several modeling companies, and at least one company is considering me for jobs. Maybe I'll never __40_ posing on the runway, but I do know one thing: I'm done.
查看习题详情和答案>>
阅读下面短文，掌握其大意，然后从四个选项（A、B、C和D）中，选出最佳选项。
"Hey, Tahlia! How's the model?"
I had just taken a bite of my hot dog __21__ I heard a familiar voice yelling at me from across the crowded school yard. I saw a group of popular girls who were all __22__.
"What kind of __23_ are you going to do? An ad for a Frankenstein movie?" More laughter. My stomach twisted into a tight knot. How could they humiliate (羞辱) me like this, __24__ the entire school? As I walked into the cafeteria, I __25__ the dark scars on my right hand.
At 9 months old, I knocked over a tea pot and dumped boiling water allover my hands and stomach. My parents __26__ me to the hospital, but I had to have skin graft (移植) operation. I was in so much pain! But what __27__ me most were the cruel things people said about how I looked, __28__ that day at lunch.
The girls were being supermean to me because they'd heard I was considering doing some modeling. A close friend had suggested that I shouldn't let my scars limit me and that I might __29__ a good model.
But after that __30__ at school, I was sure I'd made a huge mistake. Upon arriving home, I covered the mirror with a blanket, fell on my bed and sobbed.
The next day, I __31__ myself to go to school. At lunch my best friend Jesse tried to encourage me: "You can't __32_ forever, Tahlia. So what if you have a few scars? Just go outside and show them that you're just as good as they are." Although I knew he was right, I couldn’t __33__ standing up for myself like that.
However, that night as I sat on the bed, my friend's words replayed in my mind. I'm __34__ hiding from myself, I thought. How stupid! Slowly, I stood up, walked over to the __35__, and tossed the blanket aside. There, in the mirror I saw a slim, dark-haired, blue-eyed girl, looking just fine, __36__ with a few scars.
The next day I wore a comfortable T-shirt to school. What's more, I had lunch outside the cafeteria, __37__ beside those mean girls. They were shocked that I should dare to walk into their territory. I felt __38_ too—free and happy.
Sometimes people still look at me strangely. They __39_ and stare, but I don't let it get to me. I have applied to several modeling companies, and at least one company is considering me for jobs. Maybe I'll never __40_ posing on the runway, but I do know one thing: I'm done.
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下表列出了1～18号元素的原子序数和元素符号．请回答下列问题：
（1）某元素的原子结构示意图为
，它在化学反应中一般易
（2）某粒子的结构示意图为
，当x-y=8时，该粒子为
（3）具有相同原子数和电子数的分子或离子叫等电子体，等电子体具有相似的结构和性质．下列各组粒子中属于等电子体的是
A．NO和O2 B．CO和N2 C．SO2和CO2 D.P
和S
．
查看习题详情和答案>>
| 原子序数 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 元素符号 | H | He | Li | Be | B | C | N | O | F |
| 原子序数 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| 元素符号 | Ne | Na | Mg | Al | Si | P | S | Cl | Ar |
，它在化学反应中一般易得到
得到
电子（选填“得到”或“失去”）．（2）某粒子的结构示意图为
，当x-y=8时，该粒子为阴离子
阴离子
（选填“原子”、“阳离子”或“阴离子”），该粒子的符号为S2-
S2-
．（3）具有相同原子数和电子数的分子或离子叫等电子体，等电子体具有相似的结构和性质．下列各组粒子中属于等电子体的是
BD
BD
（填字母序号）．A．NO和O2 B．CO和N2 C．SO2和CO2 D.P
| O | 3- 4 |
| O | 2- 4 |