Question

difference between mandelevs periodic table and modern periodic table.​

Answer 1

Answer:

These defects are rectified by the modern periodic table.

...

Complete step by step solution:

Mendeleev's periodic table Modern periodic table

This periodic table based on atomic mass This periodic table is based on atomic numbers.

There are a total of 7 groups and 6 periods There are a total of 18 groups and 7 periods.

Explanation:

I hope this helps you