Inert Pair Effect in Group 13In the modern periodic table, the elements of the boron family present in group 13 are:Boron (B), Aluminium (Al), Gallium (Ga), Indium (In) and Thallium (Tl)Their general electronic...
QUESTION:There are 12 intermediate stations between two places A and B. Find the number of ways in which a train can be made to stop at 4 of these intermediate stations so that no two stopping stations...