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Chemistry, 26.07.2021 19:10 unkno

Tổng số hạt p, n,e trong 2 nguyên tử X và Y là 142, trong đó tổng số hạt mang điện nhiều hơn tổng số hạt không mang điện là 42 , số hạt mang điện của nguyên tử Y nhiều hơn của X là 12 xác định số hiệu nguyên tử của X và Y

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Tổng số hạt p, n,e trong 2 nguyên tử X và Y là 142, trong đó tổng số hạt mang điện nhiều hơn tổng số...

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