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範例:穩定原子核與核能[92學測]

當以mpmn 分別代表質子與中子的質量時,一個由Z 個質子與N 個中子組成的穩定原子核,其質量M 與質量數A =Z+N 的關係,可表示為M=Zmp+Nmn-AE/c2( c 代表光速)。若E A 的變化如圖12 所示,則下列敘述,何者正確?(應選二項) (A)穩定原子核的ZN必須相等(B)穩定原子核的質量,必小於其所含質子與中子的質量總和(C)兩個26Fe 56原子核融合為一個原子核時,質量會減少而轉變成能量(D)兩個1H2 原子核融合為一個原子核時,質量會減少而轉變成能量[92學測]

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Posted in 原子核, 核能, 歷屆學測(推甄)考題.

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