Question

PROBLEM 28. The wavenumber of the first line in the Balmer
series of hydrogen is 15200 cm-!. What is the wavenumber of
the first line in the Balmer series of Be3+ ion ?​

Answer 1

Answer:

243200

Explanation:

as we know the energy of constant state for hydrogen species like be³⁺ are multiple of integral type of Z² times the energy of hydrogen atom in stationary form.

hence the wave number of first line of ion = 4² × 15200

wave number = 243200 cm⁻¹