Question

How many groups and periods are there in the Mendeleev's periodic table?

• A. There are six groups and seven periods.
• B. There are eight groups and seven periods.
• C. There are seven groups and seven periods.
• D. There are eight groups and six periods.

Answer 1

The correct option is D

There are eight groups and six periods.

Mendeleev's periodic table consists of sixty three elements arranged in increasing order of their atomic mass. The table consists of eight groups and six periods.