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Chemistry, 20.09.2021 19:40 mia3128

Nguyên tử nguyên tố Y có tổng số hạt = 60 biết trong hạt nhân nguyên tử Y số hạt mang điện = số hạt không mang điện .tính số hạt mỗi loại

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Nguyên tử nguyên tố Y có tổng số hạt = 60 biết trong hạt nhân nguyên tử Y số hạt mang điện = số hạt...

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