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if the total energy of an electron in a hydrogen atom in an excited state is -3.4eV then what is the de-broglie wavelength of the electron

atomic structure

Your Answer

2pi r = n wavelength .; here, r( radius of 2nd orbital)= 0.529× n^2 ;; r= 0.529 × 4 angstrom. ;; wavelenght = (2 × 3.14× 2.116)/2 answer =6.64 angstrom.

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