Question

which element does the electron configuration $1s^22s^22p^2$ represent?
○ b
○ c
○ n
○ k

Explanation:

Step1: Calculate total electrons

Add electrons from each orbital: $2 + 2 + 2 = 6$

Step2: Match to atomic number

The element with atomic number 6 is carbon (C).

Answer:

C. C