Question

What is meant by group and columns in the modern periodic table ​

Answer 1

Explanation:

groups are the vertical columns and periods are the horizontal rows in the modern periodic table

Answer 2

The vertical rows of the modern periodic table are known as the periods and the horizontal rows of the modern periodic table are known as the groups.

• Periodic table is a scientific arrangement of different elements present in our environment according to the chemical characteristics of these elements.

• The modern periodic table has 118 elements which are arranged in 18 vertical groups and 7 horizontal periods.

• These periods and groups also have several similar physical and chemical characteristics among them.