A hydrogen atom has its electron in the n = 5 level. The radius of the electron's orbit in the Bohr model is 1.323 nm. Find the de Broglie wavelength...

A hydrogen atom has its electron in the n =  level. The radius of the electron's orbit in the Bohr model is 1.323 nm. Find the de Broglie wavelength of the electron under these circumstances.

____________m

 What is the momentum, mv, of the electron in its orbit?

____________kg-m/s