
KHỞI ĐỘNG-KIỂM TRA BÀI CŨ
Authored by Tuyen Nguyen
Chemistry
10th Grade
Used 1+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 1. Số electron tối đa trong phân lớp d là
2
10
6
14
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 2. Sắp xếp các phân lớp sau theo thứ tự phân mức năng lượng tăng dần:
1s < 2s < 3p < 3s
2s < 1s < 3p < 3d
1s < 2s < 2p < 3s
3s < 3p < 3d < 4s.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 3. Cấu hình electron của nguyên tử lưu huỳnh (Z=16) ở trạng thái cơ bản là
1s22s22p63s23p5.
1s22s22p63s23p6.
1s22s22p63s23p4.
1s22s22p63s23p3.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 4. Ion X2- có cấu hình e của phân lớp ngoài cùng là 2p6. Cấu hình electron của nguyên tử X là:
[Ne]2p63s2.
[Ne]2p4.
1s22s22p6.
1s22s22p4.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 5. Nguyên tử của nguyên tố hoá học nào sau đây có cấu hình electron là: 1s2 2s2 2p6 3s2 3p6 3d6 4s2.
Ca (Z = 20).
Fe (Z = 26).
Ni (Z = 28).
K (Z = 19).
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