The element with the completely filled p-subshell is Ar (Option C)
What is electronic configuration?
This is the arrangement of elecartons in the atomic orbitals of an element. The modern electronic configuration makes use of the s, p, d, f orbital notation where
- Sharp (s) = Maximum of 2 electrons
- Principal (p) = Maximum of 6 electrons
- Diffuse (d) = Maximum of 10 electrons
- Fundamental (f) = Maximum of 14 electrons
How to determine the element with the completely filled p-orbital
To obtain the correct answer, we shall write the electronic configuration of each element given in the question. This is illustrated below
- Na (11) => 1s² 2s²2p⁶ 3s¹
- P (15) => 1s² 2s²2p⁶ 3s²3p³
- Ar (18) => 1s² 2s²2p⁶ 3s²3p⁶
- Al (12) => 1s² 2s²2p⁶ 3s²
From the above illustrations, we can see that only Ar has completely filled p-subshell.
Thus, Ar (Option C ) is the correct answer to the question
Complete question
See attached photo
Learn more about electronic configuration:
https://brainly.com/question/14283892
#SPJ12
