Unit 6 Practice Quiz 1. BrCl5 NH3 BF3 BeCl2 a. Draw a Lewis structure for each b. Identify the basic bond angle(s) for this geometry c. Identify the molecular geometry of each molecule d. Identify the overall molecule as polar or non-polar e. State hybridization of central atom under Valence Bond Theory f. Write the electron configuration for the Br atom of BrCl5 1s 2s 2p 3s 3p 4s 3d g. Write the complete set of quantum numbers for electron circled in (f) n= ; l= ; m l= ; ms = 4p h. Give the formal charges for all the atoms in BrCl5 and explain what these charges mean about the accuracy of your Lewis structure 2. Consider a yellow light with = 550 nm (1 nm = 1 x 10-9 m). a. Determine the frequency of this light. b. Consider a second light. This light is blue with = 425 nm. Qualitatively compare the energies of one photon of these lights (i.e. their magnitudes). c. Determine the kinetic energy of an electron ejected (if one is) when: i. a photon from the yellow light shines on a metal whose atoms require 3.50 x 10-19 J of energy to remove an electron. ii. a photon from the blue light shines on a metal whose atoms require 3.50 x 10-19 J of energy to remove an electron. d. Determine the energy of one mole of the photons of the blue light.