JEE Main202427 Jan 2024Morning ShiftChemistryStructure of AtomActual
The electronic configuration for Neodymium is: [Atomic Number for Neodymium 60]
Options
- A[ Xe ] 4 f 4 6 s 2
- B[ Xe ] 5 f 4 7 s 2
- C[ Xe ] 4 f 6 6 s 2
- D[ Xe ] 4 f 1 5 d 1 6 s 2
Correct answer
A. [ Xe ] 4 f 4 6 s 2
Step-by-step solution
The atomic number of neodymium is 60 . Therefore, the electronic configuration of neodymium (Nd) can be determined by distributing its electrons according to the Aufbau principle, Pauli exclusion principle, and Hund's rule. Electronic configuration of Nd ( Z = 60 ) is; [ Xe ] 4 f 4 6 s 2 as the last electron of Neodymium enters the f subshell. so it is called a f-block element. Hence option A is the answer.