Chemistry - Atomic Structure Question with Solution | TestHub

The electron in ${\mathrm{Be}}^{+3}$ ion makes a transition from $\mathrm{n}=16$ to $\mathrm{n}=4$. This photon is used to excite a H-atom present in ground state. The de-Broglie wave length of this excited electron is ' $\mathrm{x}\pi \mathring{A}$ and maximum number of spectral lines emitted during de-excitation of electron from that H -atom is ' y ', then find $(\mathrm{x}+\mathrm{y})$ : (use first Bohr orbit of H = 0.5 Å)