Lewis Structures and Molecular Models Worksheet Version 3The molecular model will be constructed out of balls, sticks, and springs. Each ball represents an atom. A hole in a ball represents a missing electronthat is necessary to complete an octet. When two balls are joined together by a stick, the stick represents a single bond composed of two electrons. Ittwo balls are joined together by two connectors (springs), a double bond is indicated and represents four bonding electrons. Three connectors(springs) joining two balls represent a triple bond and a total of six electrons.For each of the following molecules or polyatomic ions, fill out all the columns using the following instructionsA. Calculate the total number of valence electrons.B. Draw a Lewis structure,C. Build a model.D. Determine molecular geometry (tetrahedral, trigonal pyramidal, trigonal planar, bent, or linear).E. Determine bond angle. Choices are 180°, 120°, -120°, 109.5° or -109.5° (The symbol means "approximately")F. Using an electronegativity table, determine the difference in electronegativity between bonded atoms. Use this value to determine if each bond ispolar or non-polar.G. Determine if the molecule or ion is polar or non-polar.