Chemistry
Chemistry, 28.09.2021 03:20, bri9263

Tổng số hạt trong một nguyên tử là 18. Trong đó, số hạt mang điện gấp 2 lần số hạt không mang điện

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Tổng số hạt trong một nguyên tử là 18. Trong đó, số hạt mang điện gấp 2 lần số hạt không mang điện...

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