本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 国际高中通用物理
[单选题]
Isotopes of an elementqqwcn. knfi me73 68o5cpv 22u3t vs0/j3+kwwlp53 t;mtr9u ahk0x rz have nuclei with
A. the same number of protons, but different numbers of neutrons.
B. the same number of protons, and the same number of neutrons.
C. a different number of protons, and a different number of neutrons.
D. a different number of protons, and the same number of neutrons.
参考答案: A
本题详细解析:
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