原子 X 的質量數為 56，可生成電荷為 +3 的正離子。倘原子 X 的原子序為 23，該原子有多少個中子？
A. 20 個
B. 23 個
C. 26 個
D. 30 個
化學問題[原子]
2007-01-01 4:02 am
回答 (2)
2007-01-01 4:29 am
i think your question should be wrong because
if the atomic mass is 56, then it is iron and its atomic number should be 26 not 23
if the atomic number is 23, then it is vanadium and its atomic mass is 51 not 56
the answer should be D if the atomic number is 26
and there is not suitible answer if the atomic number is 23
if the atomic mass is 56, then it is iron and its atomic number should be 26 not 23
if the atomic number is 23, then it is vanadium and its atomic mass is 51 not 56
the answer should be D if the atomic number is 26
and there is not suitible answer if the atomic number is 23
收錄日期: 2021-04-13 14:50:54
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