本题目来源于试卷: Models of Matter A.3 Electron Configurations，类别为 IB化学
[单选题]
Which of the following statements about $^{51}_{23}V$ are correct?
I. It has 23 protons
II. It has 51 nucleons
III.It has a condensed electron configuration of [Ne]$4s^23d^3$
A. I and II only
B. I and III only
C. II and III only
D. I, II and III
参考答案: A
本题详细解析:
Vanadium has an atomic number of 23 therefore statement I is true. It also has a mass number of 51, therefore statement II is also true as nucleons include both protons and neutrons. Statement III is false as the closest noble gas is Ar, not Ne. The correct condensed electron configuration would be [Ne]$4s^23d^3$ Therefore, the correct answer is A.
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