目前所使用的週期表是依據下列何者所排列出?

化學小考

Quiz
•
Chemistry
•
9th - 12th Grade
•
Medium
賴美娟 賴美娟
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50 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
原子量
原子序
質量數
元素英文字首
2.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
下列何者為構成物質的基本粒子?
原子
分子
離子
電子
3.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
關於溶液的敘述,何者正確?
溶劑一定是液體
溶質一定是固體
溶液為化合物
溶液為混合物
4.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
每100克溶液中所含溶質的克數稱為
重量百分率濃度
重量莫耳濃度
當量濃度
體積莫耳濃度
5.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
分離砂礫與鹽水的混和物最適合的辦法為何?
蒸餾
過濾
層析
萃取
6.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
在化學反應前後,下列何者一定不變?
總質量
分子數目
分子種類
總體積
7.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
下列何者不是純物質?
海水
石墨
酒精
氧氣
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