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Member for
2 years 8 monthsAge: 16
Level: Lớp 11
Language: Venda
(ve)
ID: 1385571
12/09/2021
Country code: VN
Country: Vietnam
Main content: Proton, electron (1519771)
From worksheet author:
nguyên tử, hạt nhân, vỏ nguyên tử
Other contents:
Thành phần nguyên tử
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