
KHTN7.C1.0FULL
Authored by Tran Van Trung Hai (FE FSC DN)
Science
2nd Grade
Used 1+ times

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40 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Các hạt cấu tạo nên hầu hết các nguyên tử là:
2.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Trong nguyên tử, hạt mang điện là:
3.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Nguyên tử luôn trung hoà về điện nên
4.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Nguyên tử X có 19 proton. Số hạt electron của X là:
5.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Nguyên tử X có 11 proton và 12 neutron. Tổng số hạt trong nguyên tử X là:
6.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Nguyên tử X có tổng số hạt trong nguyên tử là 60. Biết số hạt electron bằng 20. Số hạt neutron của X là:
7.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Nguyên tử X có tổng số hạt là 52, trong đó số proton là 17. Số electron và số neutron của X lần lượt là:
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