ĐỀ CƯƠNG HÓA (NHÓM IIA + NHÔM) 80LT
12th Grade
•80 Qs
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ĐỀ CƯƠNG HÓA (NHÓM IIA + NHÔM) 80LT
Quiz
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Chemistry
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12th Grade
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Practice Problem
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Medium
ngoc nguyen
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80 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 87: Hai kim loại đều thuộc nhóm IIA trong bảng tuần hoàn là
(NHÓM IIA 50LT)
Sr, K.
Na, Ba
Be, Al
Ca, Ba.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 88: Kim loại nào sau đây là kim loại kiềm thổ?
Al
Mg
Cu
Fe
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 89: Cấu hình electron lớp ngoài cùng của kim loại kiềm thổ được biểu thị chung là:
ns1
ns2
ns2 np1
np2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 90: Cấu hình electron nào sau đây là cấu hình e của kim loại nhóm IIA ?
1s2 2s2 2p6 3s2 3p6 3d10 4s2
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d105s2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 91: Trong phân nhóm chính nhóm IIA theo chiều điện tích hạt nhân tăng dần :
Tính khử của kim loại giảm
Khả năng bị oxi hóa tăng
Năng lượng ion hóa tăng
Độ âm điện tăng.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 92: Ở trạng thái cơ bản, nguyên tử kim loại kiềm thổ có số electron hóa trị là
1e
2e
3e
3e
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 93: Ở điều kiện thường, kim loại nào sau đây tác dụng mạnh với H2O?
Fe
Ca
Cu
Mg
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