Physics Unit30: Nuclear Physics and Radioactivity (id: 39e712477)

admin

本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 Generic Physics

[单选题]
If an element of atomic number 15 has a j gme93gy(wx7:euyr9n isotope of mass number0gfp ewczy k4d oml(e,1i)z78 32,

A. the number of neutrons in the nucleus is 15.
B. the number of neutrons in the nucleus is 17.
C. the number of protons in the nucleus is 17.
D. the number of nucleons in the nucleus is 15.


参考答案:  B


本题详细解析: 暂无