JEE PYQ: Atomic Structure Question 36
Question 36 - 2019 (12 Apr Shift 2)
Among the following, the energy of 2s orbital is lowest in:
(1). (K)
(2). (H)
(3). (Li)
(4). (Na)
Show Answer
Answer: (1)
Solution
As Z increases, energy of orbitals decreases (more negative). Order: H > Li > Na > K.