Atomic spectra are the study of atoms (and atomic ions) through their interaction with electromagnetic radiation. Students can refer to the solutions while answering the textbook questions and understand the method of answering them without any difficulty. Students of Class 12 are advised to refer to the NCERT Solutions from BYJU’S to gain a grip on the important concepts. The solutions are prepared with the main aim of helping students in their board exam preparation. The stepwise explanations in simple language boost the confidence of students to attempt the board exam confidently.