LUYỆN TẬP
Quiz
•
Chemistry
•
2nd - 5th Grade
•
Practice Problem
•
Medium
kiwu hoang
Used 7+ times
FREE Resource
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kí hiệu hóa học nào sau đây là của Carbon
C
Ca
Co
Cu
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kí hiệu hóa học nào sau đây là của sắt
S
Si
Fe
Cu
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nguyên tố Sodium (Natri) có số hiệu nguyên tử là 11, số khối là 23. Số proton trong nguyên tử là:
12
11
23
34
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nguyên tử Potassium (Kali) có số hiệu nguyên tử là 19, số khối là 39. Số electron trong nguyên tử là
19
39
20
58
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Nguyên tử Photphorus có số hiệu nguyên tử là 15, số neutron trong nguyên tử là 16. Số khối của nguyên tử là:
15
31
16
1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Số electron tối đa trong lớp thứ nhất là:
2
8
4
1
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Số electron tối đa trong lớp thứ hai là:
2
4
6
8
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