运用元素周期律分析下面的推断,其中错误的是A.铍(Be)是一

运用元素周期律分析下面的推断,其中错误的是

A.铍(Be)是一种金属,它的氧化物的水化物可能具有两性

B.砹是一种有色固体,HAt很不稳定,AgAt是有色难溶于水的固体

C.硫酸锶(SrSO4)是难溶于水和盐酸的的白色固体

D.硒化氢(H2Se)是无色、有毒、比H2S稳定的气体

 

答案

D

解析:

 

相关题目

Personal computers and the Internet give people new choices about how to spend t
Personal computers and the Internet give people new choices about how to spend their time. Some may use this freedom to share less time with certain friends or family members, but new technology will
Suffering from chronic fatigue(慢性疲劳)? Read on to know how to deal with i
Suffering from chronic fatigue(慢性疲劳)? Read on to know how to deal with it. Let your brain waves relax before sleep. If you want to feel energized in the morning, you need to change your even
读图,完成 14~15 题。 14.下列对山东描述正确的是(    
读图,完成 14~15 题。 14.下列对山东描述正确的是(     ) A.临黄海和东海         B.城市甲是济南市   C.属亚热带季风气候    D.春旱严重
 Leonardo da Vinci (1452~1519) ____ birds kept in cages in order to have the p
 Leonardo da Vinci (1452~1519) ____ birds kept in cages in order to have the pleasure of setting them free. A. is said to be buying      B. is said to have bought    C. had said to buy  
(2013广东惠州一月调研). 下列物理量中没有单位的是A.动摩
(2013广东惠州一月调研). 下列物理量中没有单位的是A.动摩擦因数             B.弹簧劲度系数 C.万有引力恒量            D.静电引力恒量
下表为我国甲、乙两城市某日日出、日落时间(北京时间)
下表为我国甲、乙两城市某日日出、日落时间(北京时间)统计表,据此回答问题。 城市日出时间日落时间二分日正午太阳高度 甲4:3018:30 乙7:1019
下列说法正确的是A.磁感线是磁场中真实存在的曲线B.磁体外
下列说法正确的是A.磁感线是磁场中真实存在的曲线B.磁体外部的磁感线是从磁体的北极出来回到磁体的南极C.磁场对放入其中的小磁针一定有力的作用D.
It is rather ________ that we still do not know how many species there are in t
It is rather ________ that we still do not know how many species there are in the world today. A.misleading                        B.embarrassing C.boring        

最新题目