Recent content by Fibi

Since we know that when an electron goes from the ground state (hydrogen) n=1 to n=3 for example, we have ΔE = E3 - E1 by manipulating the equation we get Rydberg's formula 1/λ= R (1/ni2 - 1/nf2) (where R is Rydberg's constant) My question here, if the electron goes from higher energy state...

never mind, we get it from Eisnteins's formula E=hc/λ

ν' = En/hc ? ν' is the wavelenght's number (in electromagnatique radiation) where ν' = 1/λ if so, how do we get it ?