Question

What is (n + l ) rule? Explain by giving two examples?

Answer 1

Explanation:

According to (n+l) rule: Orbital which has the least value of (n+l) will be filled first to the electrons. Example: 3s orbital will be filled first and then 3p orbital. Orbital.

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Answer 2

Answer:

In cases where (n + l) is the same for two orbitals (e.g., 2p and 3s), the (n + l) rule says that the orbital with lower n has lower energy. In other words, the size of the orbital has a larger effect on orbital energy than the number of planar nodes.

Explanation:

For example, electrons go to the 3d orbital only after the 4s is filled!

4s < 3d < 4p < 5s < 4d < 5p < 6s < 4f ????