Test element
Authored by Minh THCS
Chemistry
1st Grade - University
Used 15+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ca là kí hiệu nguyên tố nào
Canxi
Coban
Cobe
Caxi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mg là kí hiệu nguyên tố nào
Magie
Moza
magi
magie
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Liti có kí hiệu và nguyên tử khối là gì
La và 13
Li và 7
K và 39
Cl và 35
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tử khối của N
14
15
23
24
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tử khối của K và hóa trị là bao nhiêu ?
34 hóa trị I
39 hóa trị II
34 hóa trị II
39 hóa trị I
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tử khối của He là ?
2
4
6
8
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tử khối của Na
22
23
24
25
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