An unknown hydrogen-like ion shows the following two spectral lines

CHEMISTRY · Single correct · CBSE · Chemistry · Structure of Atom · Structure of Atom

Problem

An unknown hydrogen-like ion shows the following two spectral lines. • Lyman-

\alpha

13.4\pm0.2\,\text{nm}

• Balmer-

\alpha

73.0\pm0.5\,\text{nm}

Based on these measurements, the most probable integer value of the atomic number

Z

is (a)

Z=4

(b)

Z=9

(c)

Z=3

(d)

Z=2