How many electrons must be added to an atom With valence configuration 3p6 so that the next electron goes to upper p-subshell?
Correct answer: A. 10
- A. 10
- B. 15
- C. 12
- D. 18
Explanation
An atom with a valence configuration of 3p⁶ has all the available spaces in its p-subshell filled. Therefore, the next electron must go to the upper p-subshell, which means that it must jump to the next energy level.The upper p-subshell corresponds to the n=4 energy level. The maximum number of electrons that can be accommodated in the 4p subshell is 6. Since the atom already has 6 electrons in the 3p subshell, it needs to add 10 more electrons to fill the 4p subshell completely.Therefore, the answer is A. 10 electrons.
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