
10_ôn HK1 (2)
Authored by Võ Như Quỳnh
Chemistry
10th Grade
Used 6+ times

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27 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hạt mang điện trong hạt nhân nguyên tử là:
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Một nguyên tố R có cấu hình electron: 1s22s22p63s23p4, công thức hợp chất của R với hydrogen và công thức oxide cao nhất là:
RH2, RO.
RH2, RO3.
RH2, RO2.
RH5, R2O5.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cấu hình electron nào sau đây không phải của kim loại?
1s22s22p63s23p63d64s2.
1s22s22p63s23p5.
1s22s22p63s2.
1s22s22p63s23p1.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ion nào sau đây không là ion đơn nguyên tử?
Al3+.
NO3-.
Ca2+.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sắp xếp tính base của NaOH, Mg(OH)2, Al(OH)3 theo chiều giảm dần là:
NaOH, Mg(OH)2, Al(OH)3
Al(OH)3, Mg(OH)2, NaOH
Mg(OH)2, Al(OH)3, NaOH
Mg(OH)2, NaOH, Al(OH)3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vị trí của nguyên tử nguyên tố X có Z= 20 trong bảng tuần hoàn là:
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tố Ca có số hiệu nguyên tử là 20. Phát biểu nào sau đây về Ca là không đúng?
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