Physics Unit30: Nuclear Physics and Radioactivity (id: 9d3930290)

本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 通用国际物理

[单选题]
An atom's atomic number is dete/d.9o2hy9ptm 1ozt yxrmined by (9pvu -3*c5 pvh4gomfb2qlbl the number of

A. neutrons in its nucleus.
B. nucleons in its nucleus.
C. protons in its nucleus.
D. alpha particles in its nucleus.


参考答案:  C


本题详细解析: 暂无

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