How many elements are there in \(6^{ th }\) period of periodic table?

How many elements are there in the third period ?

How many elements are there in the 5^(th) period of modern periodic table ?

How many elements can be there in the third period ?

If 3e^(-) can be accomodated in each orbital then how many elements will be present in the 7th period of periodic table?

How may elements will be present in the 12th period of periodic table.

The 6^(th) period of the periodic table contains:

How many elements are present in i) Fifth period ii) Sixth period?