Electrons enter into orbitals in order of increasing energy as exemplified by?
- 1S\(^2\)2S\(^2\)2PX\(^2\)2py\(^2\)2pz\(^0\)3s\(^0\)
-
1S\(^2\)2S\(^2\)2PX\(^2\)2py\(^1\)2pz\(^1\)3s\(^0\)
- 1S\(^2\)2S\(^2\)2PX\(^1\)2py\(^1\)2pz\(^1\)3s\(^1\)
- 1S\(^2\)2S\(^2\)2PX\(^2\)2py\(^2\)2pz\(^0\)3s\(^1\)
The correct answer is: B
Explanation
Shells and subshells are filled in energy level order, so electrons will fill the 2p subshell before the 3s shell.
And the x subshell before the y and z.
There is an explanation video available .