Question

which element does the electron configuration 1s²2s²2p² represent?
○ b
○ c
○ n
○ k

Explanation:

Step1: Calculate the total number of electrons

The electron configuration is \(1s^{2}2s^{2}2p^{2}\).
The number of electrons in \(1s\) is \(2\), in \(2s\) is \(2\), and in \(2p\) is \(2\).
So the total number of electrons \(n = 2 + 2+2=6\).

Step2: Determine the element based on atomic number

In a neutral atom, the number of electrons is equal to the atomic number.
The element with atomic number \(6\) is carbon (\(C\)).

Answer:

C. C