Answer: Azimuthal quantum number.
- A Principal quantum number
- B Azimuthal quantum number
- C Magnetic quantum number
- D Spin quantum number
Correct answer: B. Azimuthal quantum number
Explanation: The azimuthal quantum number, l, determines the orbital shape such as s, p, d, or f.
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.