
Ôn giữa HK1 hóa lớp 10-Hoàng cầu
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Medium
nguyễn hiền
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60 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 1 Nguyên tố hóa học nào sau đây thuộc khối nguyên tố p?
Fe (Z = 26)
Na (Z=11)
Ca (Z=20)
Cl (Z=17)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho phổ khối của nguyên tố A được biểu diễn tại hình bên dưới. Nguyên tử khối trung bình của A là
91,32.
91,40.
90,00.
94,23.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ion X2- có :
Số p – số e = 2.
Số e – số n = 2.
Số e – số p = 2.
Số e – (số p + số n) = 2.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ion M2+ có số electron là 18, M có điện tích hạt nhân là
A. 18. B. 20. C. 18+. D. 20+.
18
20
18+
20+
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tổng số hạt cơ bản trong ion là
17
35
52
53
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong những hợp chất sau đây, cặp chất nào là đồng vị của nhau:
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong những hợp chất sau đây, cặp chất nào không phải đồng vị:
A
B
C
D
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