When an electron move from one level to another an amount of energy is dissipated. Give the equation that will enable you to calculate that amount of energy

http://calculator.swiftutors.com/rydberg-equation-calculator.html

That gives you wavelength lambda (L)
L = c T where c = about 3*10^8 m/s speed of light
and T = period
f = frequency = 1
T
so
L = c/f
and you know E = h f

I mean obviously

f = frequency = 1/T

The energy difference between two levels in an electron's transition can be calculated using the equation:

ΔE = E_final - E_initial

where ΔE represents the change in energy, E_final is the energy of the final level, and E_initial is the energy of the initial level.

To determine the energy levels of an electron, we can use the equation:

E = -13.6 eV/n^2

where E represents the energy level, -13.6 eV is a constant known as the Rydberg constant, and n is the principal quantum number representing the energy level.

By substituting the values of the energy levels into the first equation, we can find the amount of energy dissipated during an electron's transition.