Which subshell is filled after 4d

The 4d sublevel is filled next, after the 5s sublevel.

Índice Show

What subshell is after 4d?
What sublevel fills after 4d?
Does 4d or 5s fill first?
In what order are Subshells filled?

Electrons fill the sub levels in energy order:
1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 7p

If we add the number of electrons that each sublevel holds it looks like this:
#1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4f^14 5d^10 6p^6 7s^ 2 5f^14 6d^10 7p^6#

Source: http://www.kentchemistry.com/links/AtomicStructure/Sublevels.htm

The Aufbau diagram can be memorized more easily than the electron configuration of all the sublevels up to #7"p"^6"#.

What subshell is after 4d?

The order of the electron orbital energy levels, starting from least to greatest, is as follows: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p.

What sublevel fills after 4d?

Following the filling of the 3d sublevel is the 4p, then the 5s and the 4d. Note that the 4f sublevel does not fill until just after the 6s sublevel. The Figure below is a useful and simple aid for keeping track of the order of fill of the atomic sublevels.

Does 4d or 5s fill first?

Even though 5s orbitals have a higher principal quantum number than 4d orbitals, (n = 5 compared to n = 4), they're actually lower in energy. As a result, 5s orbitals are always filled before 4d orbitals.