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2023-11-10 21:07:04
Gọi số hạt proton = số hạt electron = p
Gọi số hạt notron = n
Ta có :
Tổng số hạt : 2p + n = 40
Hạt mang điện nhiều hơn không mang điện là 12 : 2p - n = 12
Suy ra p = 13 ; n = 14
Vậy có 13 hạt proton, 13 hạt electron và 14 hạt notron