Nguyên tố hóa học
Quiz
•
Chemistry
•
3rd Grade
•
Practice Problem
•
Medium
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Số đơn vị điện tích của nguyên tử có kí hiệu 2311Na là
11
12
13
23
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Số hạt electron của nguyên tử 168O là
8
6
10
14
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Nguyên tử A có 12 electron, 12 neutron kí hiệu của nguyên tử A là
1225A
2512A
2412A
1212A
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Nguyên tử 2713Al có
13p, 13e, 14n
13p, 14e, 14n
13p, 14e, 13n
14p, 14e, 13n
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Cho các nguyên tử 126A, 147B, 146C. Những nguyên tử nào cùng thuộc một nguyên tố hóa học?
A và B
B và C
A và C
Cả A, B, C
6.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Trong nguyên tử X có 92 proton, 92 electron, 143 neutron. Kí hiệu hạt nhân nguyên tử X là:
235143X
14392X
92235X
23592X
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Tên gọi của nguyên tố này nhằm để kỉ niệm các vị thần khổng lồ trong thần thoại Hi Lạp.
Titan (Z = 22).
He (Z = 2).
Sc (Z = 21).
Ar (Z = 18).
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