
Ôn thi hkI
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
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52 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Cấu hình electron của nguyên tử Cl (Z = 17) là
1s2 2s2 2p6 3s2 3p3.
1s2 2s2 2p6 3s2 3p5.
1s2 2s2 2p6 3s3 3p4.
1s2 2s2 2p6 3s2 3p6.
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Nguyên tố X có Z = 19. Tính chất hóa học cơ bản của X là
tính kim loại.
tính phi kim.
tính kim loại và tính phi kim.
tính trơ.
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Vị trí của nguyên tố có Z = 15 trong bảng tuần hoàn là
Chu kì 4, nhóm IIA.
Chu kì 3, nhóm IIB
Chu kì 3, nhóm VA
Chu kì 4, nhóm VIB.
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Công thức cấu tạo của phân tử HCl nào sau đây là đúng?
H = Cl.
H - Cl.
H ← Cl
H → Cl.
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Vỏ nguyên tử chứa hạt mang điện là
proton và electron.
proton.
electron.
neutron.
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Cặp nguyên tử nào dưới đây thuộc cùng một nguyên tố hóa học?
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Để đạt quy tắc octet, nguyên tử của nguyên tố potassium (Z = 19) phải nhường đi
4 electron.
3 electron.
2 electron.
1 electron.
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