11 grade chemistry others
What are horizontal rows and vertical columns in a periodic table known as ?
What are horizontal rows and vertical columns in a periodic table known as ?
1 Answer
Askiitians Tutor Team
In a periodic table, the horizontal rows are known as "periods," and the vertical columns are known as "groups" or "families." Each period represents a different energy level or shell of electrons, and each group or family contains elements with similar chemical properties due to the same number of valence electrons. The arrangement of elements in this manner helps to organize and classify them based on their atomic structure and chemical behavior.
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