The modern periodic table has vertical columns known as-

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Question

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Answer 1

The correct answer is Groups

Key Points

The modern periodic table has vertical columns known as Groups.
Groups in the periodic table are numbered from 1 to 18.
Each group contains elements with similar chemical properties because they have the same number of valence electrons.
Groups help in predicting the properties and chemical reactions of the elements within them.

Additional Information

The periodic table also has horizontal rows known as Periods.
Periods indicate the number of electron shells in the atoms of the elements in that row.
The modern periodic table was developed by Dmitri Mendeleev and later refined by Henry Moseley.
The periodic table is an essential tool in the field of chemistry, providing a comprehensive framework for understanding chemical behavior.