Calculate the energy of electron in hydrogen at quantum levels: (i) n = 1; (ii) n = 2, and (iii) n = 5, according to the Bohr’s model. (b) What is the energy change (E, in Joule) when an electron jumps from quantum level n = 5 to n = 2? Is energy gained or lost by the electron. (c) If energy is gained or lost in the form of electromagnetic radiation, what are the wavelength (; in nm) and frequency (; in s –1) of this radiation? (d) What is the longest wavelength (, in nm) of light that would have sufficient energy to excite an electron from energy level E1 to E; where E∞ = 0.0 J is the edge of the atom

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