(1)元素化学性质与最外层电子数有密切关系.氯原子的原子结构示意为 ,氯原子的

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问题:

(1)元素化学性质与最外层电子数有密切关系.氯原子的原子结构示意为

,氯原子的最外层电子数为______.下列图中微粒共表示______种元素,其中与氯原子具有相似化学性质的是______(填序号).

(2)某阳离子的结构示意图为

,则x的数值可能是下列中的______.

A.9             B.10              C.11              D.12.

考点:原子结构示意图离子结构示意图
题型:填空题
完型填空。
      There is a shop near my home. It (1) many things like bread, milk, (2) and drinks. My mother often goes
shopping there (3) Sundays and buy food. I go with her, too, and carry baskets (4) her. The people in the shop
are very friendly. They (5) us put the heavy things on the bikes. It doesn't sell (6) . I must buy rulers, pens and
pencils in other shops. The shop is not open (7) eight o'clock in the morning, so don't go to buy things for (8).
It (9) at ten in the evening. Mother says we can go there (10) supper time. But I think it is too late.
( ) 1. A. is sell 
( ) 2. A. cakes   
(     ) 3. A. in      
(     ) 4. A. with    
(     ) 5. A. help    
(     ) 6. A. food       
(     ) 7. A. after   
(     ) 8. A. supper  
(     ) 9. A. stops   
(     ) 10. A. after  
B. sells          
B. bikes          
B. at             
B. near           
B. ask            
B. school things      
B. before         
B. lunch          
B. leaves         
B. before       
C. is buy          
C. pencils-boxes   
C. on              
C. help            
C. want            
C. kites                  
C. at              
C. breakfast       
C. opens           
C. at            
D. buys       
D. books      
D. about                     
D. for        
D. like       
D. drinks            
D. in         
D. class      
D. closes     
D. in       
题型:填空题

下列各选项中是物质的分离方法,其中能达到目的是(  )

A.碘的饱和水溶液,用四氯化碳进行萃取、分液即可把水和碘分开

B.FeSO4溶液中有杂质CuSO4,加入稍过量的铁粉充分搅拌、静置、过滤即可

C.NaCl溶液中有杂质Na2SO4,加入硝酸钡溶液充分搅拌、静置、过滤即可

D.CaO中有杂质CaCO3,加入稀HCl蒸发、结晶即可

题型:填空题

对焦虑型、夜间醒来次数较多或早醒者可选用()。

A.艾司唑仑

B.氟西泮

C.氯美扎酮

D.谷维素

E.夸西泮

题型:填空题

30岁男性患者,肛门外经常不洁,分泌物有恶臭,时有肛门处肿痛,检查发现距肛门口2、5CM处,有 * * 状突起,触诊有索状物与肛门相连,且有压痛,属何种疾病,如何处理()

A.外痔无须处理

B.血栓性外痔行血栓切除

C.肛管癌行Mile’s术

D.单纯性肛瘘行挂线或瘘管切开或切除治疗

E.肛裂并行切除术

题型:填空题

第二鳃裂瘘管内瘘口位于

A.梨状窝

B.舌根部

C.扁桃体窝

D.舌盲孔

E.口腔颊部

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