Answer :
Final answer:
Elements in the same group of the periodic table exhibit similar chemical behavior due to their electron configurations.
Explanation:
The elements in groups (vertical columns) of the periodic table exhibit similar chemical behavior. This similarity occurs because the members of a group have the same number and distribution of electrons in their valence shells.
For example, as we move down a group, the metallic character of the atoms increases. Oxygen, at the top of Group 16 (6A), is a colorless gas; in the middle of the group, selenium is a semiconducting solid; and, toward the bottom, polonium is a silver-grey solid that conducts electricity.
Elements from the same group often have similar physical and chemical properties due to their electron patterns, which determine their chemical behavior in reactions.
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