Total number of elements in 6th period are:

Total number of elements of 6th period which have one or more than one 4d electrons :-

Total number of elements of 5th period which have one or more than one 5d electrons :-

Total number of element in each period is twice the number of__________being filled.

The total number of elements in period 3 of the periodic table is:

" If a periodic table is prepared by subsiding Aufbau's principle to write electronic configuration.Then the number of elements in "6" th period of P.T.would be : "

If each orbital can hold a maximum of 3 electrons, the number of elements in 4th periodic table (long form) is.

The number of elements in the 4th period of periodic table is