JEE Mains · Chemistry · STD 11 - 2. structure of atom
When the excited electron of a \(H\) atom from \(n =5\) drops to the ground state, the maximum number of emission lines observed are\(.......\)
- A \(15\)
- B \(16\)
- C \(10\)
- D \(8\)
Answer & Solution
Correct Answer
(C) \(10\)
Step-by-step Solution
Detailed explanation
Maximum number of emission lines from \(\mathrm{n}^{\text {th }}\) energy state to ground state is given by: \(=\frac{\mathrm{n}(\mathrm{n}-1)}{2}=\frac{5(5-1)}{2}=\frac{20}{2}=10 \text { lines. }\)
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