Answer: Ultraviolet.
- A Infrared
- B Visible
- C Ultraviolet
- D Microwave
Correct answer: C. Ultraviolet
Explanation: Lyman series lines (transitions ending at n = 1) have the highest energies in the hydrogen spectrum and lie in the ultraviolet region.
Bohr's model: electrons occupy fixed circular shells (K, L, M) around the nucleus, with each shell holding up to 2n2 electrons.
Concept context
Explore how electrons are arranged inside an atom. Covers Bohr's model, quantum numbers, Heisenberg's uncertainty principle, shapes of s, p, d orbitals, and electronic configuration rules.