4 Na Fe Cr Co 2 An electron in a hydrogen atom in its ground

Last updated: 7/3/2023

4 Na Fe Cr Co 2 An electron in a hydrogen atom in its ground state absorbs energy equal to the ionisation energy of Li The wavelength of the emitted electron is 1 3 32 x 10 10 m 3 3 33 pm 2 1 17 4 None of these