Saved Bookmarks
| 1. |
Assertion: 2s-orbital of hydrogen atom has more energy than corresponding 2s-orbital of lithiumReason: As atomic number increases energy of orbitals in the same sub shell decreases.(1) Assertion is true, Reason is true and Reason is correct explanation of Assertion(2) Assertion is true, Reason is true and Reason is not correct explanation of Assertion.(3) Assertion is true and Reason is false(4) Assertion is false and Reason is true |
|
Answer» Correct option is (1) Assertion is true, Reason is true and Reason is correct explanation of Assertion Energies of the orbitals in the same subshell decrease with increase in the atomic number (Zen). For example, energy of 2s orbital of hydrogen atom is greater than that of 2s orbital of lithium and that of lithium is greater than that of sodium and so on, that is E2s(H) > E2s(Li) > E2s(Na) > E2s(K). |
|