Number of elements present in 5th period is

Total number of elements present in 5 th period of modern periodic table is

Total number of elements present in 5 th period of modern periodic table is

The maximum number of elements present in fifth period :

The number of elements present in sixth period of modern periodic table is _________

Number of elements present in longest period

Number of elements present in period - 2 of the long form periodic table _________

An element 'E' has atomic number 14. To which period this element belongs? How many number of elements are present in the period to which element ' E' belongs?