The Periodic Table Online Practice

Complete this assessment to review what you’ve learned. It will not count toward your grade.
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Question
How are elements in the same group of the periodic table similar to each other chemically? (1 point)
Responses

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

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 valence electrons.

1 answer

The correct response is:

These elements all have the same number of valence electrons.

Elements in the same group of the periodic table have similar chemical properties because they possess the same number of valence electrons, which largely determines their reactivity and the types of bonds they can form.