氦的元素符号。

测验:元素周期表 + 第1 章

Quiz
•
Chemistry
•
8th Grade
•
Medium
CHING WEN庄雨雯
Used 41+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
HE
He
H
h
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
元素1-5的正确顺序
氢、氦、锂、铍、硼
碳、氮、氧、氟、氖
钠、镁、铝、硅、磷
硫、氯、氩、钾、钙
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
元素“Be"的化学名称。
硼
錋
铍
陂
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
元素符号1-5的正确顺序
C、N、O、F、Ne
Na、Mg、Al、Si、P
H、He、Li、Be、B
S、Cl、Ar、K、Ca
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
________是保持物质化学性质的最小粒子。
原子
分子
离子
粒子
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
分子由____构成。
原子
粒子
离子
物质
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
原子核内由什么构成的?
质子和电子
质子和中子
电子和中子
质子、中子和电子
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