Question

Answer the following question regarding the modern version of Mendeleev's periodic table.

What are groups?

Answer 1

Groups: The vertical columns in the Mendeleev's periodic table are known as groups.

• The number of groups present in the original Mendeleev's periodic table was 8 and later, in the modified form, another group called group-0 was added to the extreme left side of the periodic table.
• In Mendeleev's periodic table, elements were arranged in the order of the increasing atomic weights.
• The elements were arranged in the form of vertical columns called groups and horizontal rows called periods.