Statement-1 : The 5^(th) period of periodic table contains 18 elements not 32. Statement-2 : n=5,l=0,1,2,3. The order in which the energy of available orbitals 4d, 5s, 5p increases is 5slt4dlt5p and the total number of orbitals available are 9 and thus 18 electrons can be accomodated.

Statement-1 : The 5^(th) period of periodic table contains 18 elements

1.	Statement-1 : The 5^(th) period of periodic table contains 18 elements not 32. Statement-2 : n=5,l=0,1,2,3. The order in which the energy of available orbitals 4d, 5s, 5p increases is 5slt4dlt5p and the total number of orbitals available are 9 and thus 18 electrons can be accomodated.
Answer» Statement-1 is TRUE, Statement-2 is True, Statement-2 is a correct EXPLANATION for Statement-1 Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1 Statement-1 is True, Statement-2 is False. Statement-1 is False, Statement-2 is True. Solution :The number of ELEMENTS in a period is equal to the number of electrons that can be accomadated in available orbitals that are being filled for the GIVEN n.