d and f orbitals

[Kainath Kamil Dis 2K]

I know for the midterm we only had to know up until the first row of d, but how does the rest of the d block compare to the f block? What are the patterns to the f block and are there any exceptions to their rules?

[Lauren Woodward 1I]

The rule for the f block is similar to the rule for the d block; the orbitals with lower energy will be filled first. This is the order for the energy of the orbitals: 1s<2s<2p<3s<3p<4s<3d<4p<5s<4d<5p<6s<4f<5d<6p<7s<5f<6d<7p

[Paul Zhang 2F]

Hello! For the f-block, the most notable property is that there are 7 possible orbitals. One electron config exception including the f-block is gold: [Xe] 4f14 5d10 6s1 instead of [Xe] 4f14 5d9 6s2. The full list can be found at the following URL; the exceptions are highlighted in red: https://ptable.com/#Electrons/Expanded. Hope that's helpful!

[Alan Nguyen 2I]

The exceptions in the electron configurations in the f orbitals lie in the electron's preference to completely fill the one orbital instead of following the traditional order that we would expect. This is seen in f and d oribitals!

[Joseph Liao 3C]

For anything beyond the d block, I am pretty sure that the block gains two orbitals with every block above d. Thus, f would have 7 orbitals, g would have 9, and so on. Otherwise, I think the block is pretty similar to the d block.

[Claire Kim 1F]

I know for the midterm we only had to know up until the first row of d, but how does the rest of the d block compare to the f block? What are the patterns to the f block and are there any exceptions to their rules?

I believe that after block d, there's two more orbitals meaning more electrons per block up. That's why the f block has 7 orbitals while the d block has 5.

[amara ajon 1d]

Hi,
For the most part, the other d blocks follow the same pattern as the first one we learned in class. For the f block, its most notable characteristic is the 7 orbitals compared to the d block's 5 — meaning there are a total of 14 electrons in each f block. On that note, similar to the d block, a half filled f shell is more stable so electron configuration exceptions follow a similar pattern where an electron would be taken from the d block to complete the half/full shell of the f block (e.g., 4f14 5d9 compared to 4f13 5d10).