
Câu hỏi
Authored by Thùy Dương Trần Thị
Chemistry
9th - 12th Grade
Used 6+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cấu hình e lớp ngoài cùng của kim loại nhóm IIA
ns1
ns2
ns2np1
np1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2 nguyên tố nhóm IIA
Na, K
Ca, Ba
Na, Be
K, Sr
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đi từ Be đến Ba nhiệt độ nóng chảy, nhiệt độ sôi
tăng dần
giảm dần
không thay đổi
lúc tăng, lúc giảm không theo quy luật
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính chất hóa học đặc trưng của kim loại IIA là
Tính oxi hóa mạnh
Tính khử mạnh
Tính oxi hóa yếu
Tính khử yếu
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Từ Be đến Ba tính khử
mạnh dần
yếu dần
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
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