The size of the species increases in the order 

Which of the following elements whose electronic configurations are given is least chemically reactive?

What is the electronic configuration of the d-block elements?

An element with mass number 27 has 14 neutron in the nucleus of its atom. The element belongs to

Which pair of atomic number represents s-block elements?

Which has the greatest second ionization energy?

An element has atomic mass 31 and atomic number 15. The elements belongs to

The statement which is false for the long-form as the periodic table is: