Question

PLEASE ANSWER NUMBER 4 ONLY

3. Use Rydberg's equation for the energy of an electron to find the equation CHANGE of energy of an electron undergoing of energy of an electron undergoing a transition between energy levels (initial energy level of ni to a final energy level of ni). Eelectron = -2.178 x 10-18) AEclectron = ??? The equation given in the handout for the relationship between the change in energy level of an electron and the photon absorbed or released is AElectron + Emon = 0. This implies that the energy of a photon can be negative; do you think that's the case? What would a "negative" photon energy tell us about the photon? CHEM&161 F19 Lab

Answer 1

o Sol: The Rydberg's equation, 3) Energy of an electron undergoing a transition between Eneogy levels Cinitial Energy level to final Energy) - Chi to nf) Eclection : -2.118 x 10 ley C AEclectron Con 3:18 xv0" 2.178 X10 E = -2.178 X 10 Novo, Now, ameza Cea EG-E, = 3.178 2 - 2.178 z at electron ocelectron - 21162° Con ng ng an

se electron : 2110 2 Gia s Gliven = 0 A dlectron Photon - - Photon, €2=E, t Ephoton → €2-E, = Ephoton → 62-6, = 4€ AE=éphoton, ae is ove If AET Ephoton =0 ^6= tve AE =-ve AE-ve for the - Ephoton Cannot be negative Negative Photon Energy is obserbed.