What is the wavelength of light (in nm) produced by the electronic transitions between levels 4 and 2 of a hydrogen atom? (show your work) Provided:
Ry= 2.18 x 10 ⁻¹⁸ J
∆E=RH(1/n²i-1/n²f)
h = 6.626 x 10⁻³⁴ J.s and c = 2.998 x 10⁸ ms⁻¹
λv=c
∆E=hv