Pick which electron configuration represents an excited state of a neutral atom?
ID: 877284 • Letter: P
Question
Pick which electron configuration represents an excited state of a neutral atom?A. 1s2 2s2 2p6 3s3 B. 1s2 2s2 2p6 3s2 3p10 C. 1s2 2s2 2p6 3s2 3p6 3d1 D. 1s2 2s2 2p6 3s2 3p6 3d10 4s2 Pick which electron configuration represents an excited state of a neutral atom?
A. 1s2 2s2 2p6 3s3 B. 1s2 2s2 2p6 3s2 3p10 C. 1s2 2s2 2p6 3s2 3p6 3d1 D. 1s2 2s2 2p6 3s2 3p6 3d10 4s2 Pick which electron configuration represents an excited state of a neutral atom?
A. 1s2 2s2 2p6 3s3 B. 1s2 2s2 2p6 3s2 3p10 C. 1s2 2s2 2p6 3s2 3p6 3d1 D. 1s2 2s2 2p6 3s2 3p6 3d10 4s2
Explanation / Answer
Answer-
From the given 4 electron configurations option C is the electron configuration of the excited state of neutral atom because
In the ground state electron configuration should be 1s2 2s2 2p6 3s2 3p6 4s1 , but given electron configuration is 1s2 2s2 2p6 3s2 3p6 3d1 this means the electron from the 4s orbital is excited 3d orbital.
Therefore the correct answer is the option C