
BTVN - Nguyên tử
Authored by Nguyễn Nhị Hà ( TDS-THT)
Chemistry
7th Grade
Used 1+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tử oxygen có 8 hạt proton trong hạt nhân. Số hạt mang điện tích trong nguyên tử oxygen là
8
10
16
20
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khối lượng gần đúng của nguyên tử sodium (11p, 12n) là
22 amu
23 amu
24 amu
25amu
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hạt không mang điện trong nguyên tử là
proton.
neutron.
electron
hạt nhân
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lớp vỏ nguyên tử được cấu tao từ các hạt
electron
proton
neutron
hạt nhân
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khối lượng hạt electron ?
rất lớn
bằng khối lượng hạt p
bằng khối lượng hạt n
rất nhỏ
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