Question

30. Which of the following orbitals is of the least
energy?
(1) 25 (Li)
(2) 25 (B)
(3) 2$ (F)
(4) 25 (N)​

Answer 1

Answer:

(1) 25(li)........

.......

Answer 2

Answer:

25 (Li)

Explanation:

The order of the electron orbital energy levels, starting from least to greatest, is as follows: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p. Since electrons all have the same charge, they stay as far away as possible because of repulsionAt the lowest energy level, the one closest to the atomic center, there is a single 1s orbital that can hold 2 electrons. At the next energy level, there are four orbitals; a 2s, 2p1, 2p2, and a 2p3