Models of Matter A.3 Electron Configurations (id: 2a0a5f36a)

本题目来源于试卷: Models of Matter A.3 Electron Configurations，类别为 IB化学

[单选题]
How many fully occupied p orbitals are there in selenium, Se, atom?

A. 2
B. 3
C. 7
D. 9


参考答案:  C


本题详细解析:
Explanation: Selenium's electron configuratioxl.hy /wj hq*9q4u5fn1uji x+ n-p eh7n is $1s^22s^22p^63s^23p^64s^23d^{10}4p^4$.The three $2p$ and three $3p$ orbitals are fully occupied, along with one 4p orbital.$\ce{1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^{10} 4p^4}$

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