1.地壳中含量最多的元素是( )
化学用语小测验

Quiz
•
Chemistry
•
9th Grade
•
Hard

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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A.氧
B.铝
C.硅
D.铁
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.加碘食盐、葡萄糖酸锌口服液中的“碘”、“锌”指的是( )
A.原子
B.分子
C.单质
D.元素
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3.国际通用的元素符号是用1个或2个拉丁文字母表示的,其中第一个字母大写,第二个字母小写。镍元素的拉丁文名称为Niccolum,则镍的元素符号为( )
A.Ni
B.NI
C.N
D.Na
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4.下列符号中既能表示一种元素,又能表示一个原子,还能表示一种单质的是( )
A.N
B.O
C.H
D.Fe
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5.下面元素符号正确的是()
A.金aU
B.锰Mn
C.氦he
D.银AG
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6.元素符号“N”可以表示()
A.氮气的化学式
B.1个氮原子
C.1个氮元素
D.氮原子质量
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
7.Fe2O3中Fe的化合价是 ( )
A.-3
B.-2
C.+2
D.+3
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