What does the group number on the periodic table tell you about the electron configuration of a
representative element?

The s-block and p-block together are usually considered main-group elements, the d-block corresponds to the transition metals, and the f-block encompasses nearly all of the lanthanides (like lanthanum) and the actinides (like actinium)

There are three main principles, which may useful for you:

The Pauli exclusion rule basically says that at most, 2 electrons are allowed to be in the same orbital.
Hund’s rule explains that each orbital in the subshell must be occupied with one single electron first before two electrons can be in the same orbital.
The Aufbau process describes the process of adding electron configuration to each individualized element in the periodic table.

Hope this helps!

What does the group number on the periodic table tell you about the electron configuration of a representative element?

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What does the group number on the periodic table tell you about the electron configuration of a
representative element?