Chemistry, 24.07.2021 02:20, chapmel20

Trong tự nhiên có hai đơn vị bền của của C là 12C và 13C . Nguyên tử khối trung bình là 12,011. Phần trăm về khối lượng của 13C trong tự nhiên là

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Trong tự nhiên có hai đơn vị bền của của C là 12C và 13C . Nguyên tử khối trung bình là 12,011. Phần...