nhochuyk7 nhochuyk7

24-09-2022
Chemistry

contestada

xác định số hạt p,n,e và kí hiệu của nguyên tử X trong cac trường hợp sau
nguyên tủ nguyên tố X có tổng số hạt p,n, e bằng 48 , số hạt proton bằng số hạt neutron

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