less than (1 yd - 3ft is less than 4ft)
the correct order is-4s>4p>4d>4f this is because of the shape of the orbitals
They are further away from the nucleus and easier to remove (requires less energy), i.e. first ionization is less.
3 nodes in 4f
4f is a valid orbital.
The 4f series is referred to as the Lanthanides.
This question is tricky because distance and location are not well defined within the electron cloud. So for the sake of explanation, let us assume that the question is "Which has a region maximum probability closest to the nucleus?" I could not find an answer in print for the 4f vs 6s. However, I did find an answer comparing the 3d and 4s. I believe that an understanding of a comparison between the 3d and 4s can be extended to a comparison between the 4f and 6s. The most probable distance of the 3d is less than the 4s. Therefore, we could extend this and say that most likely the 4f sublevel would have a distance of maximum probability closer than the 6s. You did not ask why so I will not go into an explanation.
The maximum number of electrons that can exist in 4f orbitals is 14.-pg. 110 Modern Chemistry table 2:)
not good for the army .
some atoms have 5, some have none. the max is 5
4f subshell has the highest energy. A f subshell has the highest energy among all the subshells in any shell.
UNFIT FOR MILITARY DUTY - Physically, Mentally or both.
in 5s it is filled but in 4d or 4s its half