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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.A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1B. Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1C. Statement-1 is True, Statement-2 is False.D. Statement-1 is False, Statement-2 is True. |
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Answer» Correct Answer - A 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. |
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