Question

an atom of chlorine has the electron configuration [ne] 3s2 3p5. determine how many atomic orbitals in this atom are occupied by at least one electron.

Answer 1

The electron configuration of an atom of chlorine with the electron configuration [ne] 3s2 3p5 is 1s²2s²2p63s²3p5.

Step-by-step explanation:

A neutral chlorine atom has 17 electrons. Two electrons can go into the 1s subshell, 2 can go into the 2s subshell, and 6 can go into the 2p subshell. That leaves 7 electrons. Of those 7 electrons, 2 can go into the 3s subshell, and the remaining 5 electrons can go into the 3p subshell. Thus, the electron configuration of neutral chlorine atoms is 1s²2s²2p63s²3p5.