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Chemistry, 20.10.2021 01:00 xchloee

Cho các nguyên tử có kí hiệu sau: 11 23 ; 17 35
a) Xác định số khối, số proton, số nơtron, số e của nguyên tử các nguyên tố trên
b) Viết cấu hình e nguyên tử, xác định số electron ở mỗi lớp, là kim loại , phi kim hay khí
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Cho các nguyên tử có kí hiệu sau: 11 23 ; 17 35
a) Xác định số khối, số proton, số nơtron, s...

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