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Allisa [31]
3 years ago
13

Tổng số hạt của nguyên tử X là 40 trong đó số hạt mang điện nhiều hơn số hạt E mang điện là 12.

Chemistry
1 answer:
Alona [7]3 years ago
8 0
I’m pretty sure b! hope you get it right
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