Question

quantum model of atom

why potential energy of 4s is lower than 3d ?

Answer 1

Isn't this chemistry?
I think it is because according to schrodinger's atomic model, the 4s comes before 3d

Answer 2

energy of an orbital is given by n+L rule
where n is principal quantum no. and L is azimuthal quantum no.
higher the value of n+l higher is the energy...this is known as Aufbau principle.

Answer 3

thank you, we're just starting quantum model

1) i was thinking as we go up the energy level n=1, 2, 3... potential energy increases
2) within an energy level, for example n=2, potential energy increases as we go up the sublevels, s,p,d,f... .

my second statement is incorrect is it ? could u plz explain more