How many periods and groups are there in the modern periodic table ?

How many groups are there in the modern periodic table?

How many groups are there in the modern periodic table?

How many groups are there in the Modern Periodic Table?

How many periods annd groups are there in the modern version of mendeleev's periodic table?

How many groups and periods are there in the modern periodic table? How do the atomic size and metallic character of elements vary as we move ? (i) down a group and (ii) from left to right in a period.

How many groups are present in modern periodic table

How many periods are there in the Modern Periodic Table?