
bảng 1-t42
Authored by chu ngân
Chemistry
University
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7 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
nguyên tử khối của Kali là:
35
36
39
40
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
nguyên tử khối = 55 đvC của nguyên tố nào?
Mg
Mn
Ca
Na
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
nguyên tử A nặng gấp 2 lần nguyên tử C.A là nguyên tố nào?
Al
O
Mg
S
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
nguyên tử khối của Ag là:
80
137
201
108
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
nguyên tử khối = 207 đvC là của nguyên tố nào?
Pb
P
F
Be
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
nguyên tử X nặng gấp 20 lần nguyên tử H. Nguyên tử Y nặng gấp 2 lần nguyên tử X. Y là nguyên tố nào?
Cl
Cr
Ca
K
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
nguyên tử X nặng gấp 20 lần nguyên tử H. Nguyên tử Y nặng gấp 2 lần nguyên tử X. X là nguyên tố nào?
Ne
N
Mn
Ar
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