Manganese has a total of 25 electrons, but the following orbital notation for manganese is incorrect. Explain the error in terms of the rules for electron arrangements. Manganese: 1s is filled. 2s is filled. 2p is filled. 3s is filled. 3p is filled. 3d is shown with five orbitals. The first two orbital have two electrons. Orbitals three through five in the 3d sublevel have one electron each.
The Orbital configuration for Manganese is as follows:
1s2 2s2 2p6 3s2 3p6 4s2 3d5
It says 3d is shown with five orbitals- this is correct
Then it says the first two orbitals have two electrons-this is incorrect.
When filling in the orbitals for any element, you first need to distribute to ALL orbitals then extras go from there.
The orbital d can have up to 10 electrons so you need to distribute at least one electron to all ten. Since you only have 5 then only 5 orbitals would have electrons in them. In order for ANY of the orbitals to have two electrons, there would need to be AT LEAST 11 electrons to distribute.
