How are elements in the same group of the periodic table similar to each other chemically? (1 point)

Question

Responses

These elements all have the same number of electrons in their inner shell.
These elements all have the same number of electrons in their inner shell.

These elements all have the same number of electrons.
These elements all have the same number of electrons.

These elements all have the same number of energy levels with electrons in them.
These elements all have the same number of energy levels with electrons in them.

These elements all have the same number of valence electrons.

Answer 1

The correct response is:

These elements all have the same number of valence electrons.

Elements in the same group of the periodic table share similar chemical properties primarily because they have the same number of valence electrons, which influences how they bond and react with other elements.