Answer to Question #86642 in Inorganic Chemistry for MAHESH

Question #86642
When electrons are added in the 6s orbital, what happens to the energy level of the 5d
orbitals? As a result after the electron enters 5d orbitals in the lanthanum, in which orbital
does the next electron enter in cerium?
1
Expert's answer
2019-11-22T11:05:06-0500

When electrons are added in the 6s orbital, what happens to the energy level of the 5d orbitals? As a result after the electron enters 5d orbitals in the lanthanum, in which orbital does the next electron enter in cerium?

Answer:

There is a consistent increase in the number of electrons at the 4f level, and level 5d remains unoccupied. In cerium, at the 4f level, there are two electrons - one due to an increase in the sequence number as compared to lanthanum by one, and the other goes from 5d-level to 4f.


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