Question

Consider a spectral line resulting from the transition n = 5 to n = 1 in the atoms and ions given below. The shortest wavelength is produced by –

• A. Helium atom
• B. Deuterium atom
• C. Singly ionised helium
• D. Ten times ionised sodium atom

Answer 1

Answer: (D)

Ten times ionised sodium atom

Answer 2

$\frac{1}{\lambda}$ = RZ² $\left( \frac{1}{n_{1}^{2}} - \frac{1}{n_{2}^{2}} \right)$Ž l µ 1/Z²