KHTN 7-Nguyên tử -NTHH3
Quiz
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Others
•
7th Grade
•
Medium
Hathu Trinhthi
Used 67+ times
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19 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Nguyên tử có 12 electron ở lớp vỏ. Hỏi trong hạt nhân có bao nhiêu hạt mang điện?
12
24
6
48
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Cấu tạo lớp vỏ electron của nguyên tử Na (Z = 11) là
2/8/2
2/8/1
2/8
2/9
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Cách viết biểu diễn 5 nguyên tử nitrogen là
5n
5N
4.
FILL IN THE BLANK QUESTION
1 min • 5 pts
Kí hiệu hóa học của Sodium là
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Nguyên tố X có 3 lớp electron và 3 electron lớp ngoài cùng, nguyên tố X có số hiệu nguyên tử là
3
5
13
23
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Nguyên tố R nằm ở ô số 19 trong bảng tuần hoàn, vị trí của nguyên tố R là
chu kì 4, nhóm IA
chu kì 3, nhóm IA
chu kì 2, nhóm IA
chu kì 4, nhóm IIA
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Nguyên tố N nằm ở chu kì 2, nhóm VA. Số electron lớp ngoài cùng của N là
2
3
4
5
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