.wt would happen if elements are not classified intogroups de periods?

1.	.wt would happen if elements are not classified intogroups de periods?
Answer» The vertical columns on the periodic table are CALLED groups or families because of their SIMILAR chemical behavior. 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.

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