What is the maximum number of spectral lines, if the sample contains infinite number of atoms? — Atomic Structure Chemistry Question

💡 Solution & Explanation

For an infinite sample size, every statistically possible transition will occur. The total number of possible transitions between $n=5$ and ground state is given by $\frac{n(n-1)}{2} = \frac{5(4)}{2} = 10$. Therefore, correct answer is D.