Please just explain it in a small sentence but pls explain it! How are the groups organized in the periodic table? What do all the elements in a group have in common?

The vertical columns on the periodic table are called groups or families because of their similar chemical behavior.

Explanation:

All the members of a family of elements have the same number of valence electrons and similar chemical properties. The horizontal rows on the periodic table are called periods.

b is the correct answer

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