Chủ đề 1
Flashcard
•
Chemistry
•
3rd Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Cấu tạo hạt nhân nguyên tử:
Back
proton và neutron
2.
FLASHCARD QUESTION
Front
Hạt mang điện trong hạt nhân nguyên tử
Back
proton.
3.
FLASHCARD QUESTION
Front
Nguyên tử trung hoà điện vì:
Back
số hạt electron = số hạt proton
4.
FLASHCARD QUESTION
Front
Trong nguyên tử, hạt có khối lượng không đáng kể so với các hạt khác là
Back
electron.
5.
FLASHCARD QUESTION
Front
Nguyên tố hóa học là những nguyên tử có cùng số proton.
Back
số proton
6.
FLASHCARD QUESTION
Front
Nguyên tử P có Z=15, A=31 nên có:
Back
15 hạt proton, 15 hạt electron, 16 hạt neutron.
7.
FLASHCARD QUESTION
Front
Phát biểu nào không đúng?
Back
Trong nguyên tử, số đơn vị điện tích hạt nhân bằng số proton và bằng số neutron.
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