Suppose the mass of electron decreased by 25%. How will it affect the Rydberg constant? — Atomic Structure Chemistry Question

💡 Solution & Explanation

The Rydberg constant $R$ is directly proportional to the mass of the electron $m_e$ ($R \propto m_e$). If the mass decreases by 25%, it becomes 75% of its original value, and thus $R$ also reduces to 75% of its original value. Therefore, correct answer is C.