Nguyên tố liti có số hiệu nguyên tử là 3 và số khối là 7. Số hạt nơtron trong nguyên tử liti là
nguyên tử

Quiz
•
Chemistry
•
10th Grade
•
Medium
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
3
4
10
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which of these elements are Halogens?
Fluorine
Helium
Zinc
Bromine
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A
B
C
D
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
canxi( Z = 20) có số electron ở lớp ngoài cùng là
1
2
3
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Một nguyên tố hóa học được đặc trưng bởi:
tổng số proton và nơtron
khối lượng nguyên tử
số proton trong hạt nhân
số electron ngoài cùng
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A
B
C
D
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
electron mang điện tích
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