What is the Madelung's rule?
Madelung's rule states:
- The energy of an atomic orbital increases with increasing
#n + l#
- For identical values of
#n + l#, energy increases with increasing #n#
Identical values of
If there are identical
If there are different
This order is based on the total number of nodes in the atomic orbital,
The higher the value of
The complete order for filling orbitals according to the Madelung rule is:
The order is summarized in the triangular diagram below.