The wavelength of the Lyman- line of an unknown hydrogen-like ion is measured to be

CHEMISTRY · Single correct · A Level · Chemistry · Atomic structure · Atomic structure

Problem

The wavelength of the Lyman-

\alpha

line of an unknown hydrogen-like ion is measured to be

30.4\,\text{nm}

. Calculate the atomic number

Z

of the ion. (a)

4

(b)

2

(c)

3

(d)

1