An early planetary model of the hydrogen atom consisted of a 1.67 x 10 -27 kg proton in the nucleus and a 9.11 x 10 -31 kg electron in orbit around it at a distance of 5.0 x 10 -11 m. In this model, what is the gravitational force between a proton and an electron?

whichever one it is, it's definitely not one that you included on the list you provided.

do you have a formula possibly

you'd use the equation that establishes a relationship between  energy  and  wavelength, which looks like this

e=h⋅cλ, where

λ  - the wavelength of the photon; c  - the speed of light, usually given as  3⋅108m/s; h  -  planck's constant, equal to  6.626⋅10−34j s

plug the value you were given for the energy of the photon in the above equation to get the wavelength

e=h⋅cλ⇒λ=h⋅ce

λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m