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Vlad [161]
3 years ago
7

Nguyên tử của nguyên tố X có tổng số hạt 40. Tổng số hạt mang điện nhiều hơn số hạt không mang điện là 12 hạt.

Chemistry
1 answer:
eimsori [14]3 years ago
3 0
Make this more clear?
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