Draw the Lewis structures of the molecules below and use them to answer the following questions: I. BH3 NO2 III. II. SF6 03 PCI5 IV. V. Which of the molecules obeys the octet rule?

a. chloroform, CHCI3 (carbon is central atom) Lewis structure Total number of electron groups around the central atom Electron geometry Molecular shape b. Carbon tetrachloride, CCI4 Lewis structure Total number of electron groups around the central atom Electron geometry Molecular shape c. Methanol, CH3OH (answer questions for the carbon center) Lewis structure Total number of electron groups around the central atom Electron geometry Molecular shape

C : Based on the Lewis structure above, the central atom of this molecule has bonding electrons, _ pairs of non-bonding electrons, and (obeys, does not obey) the octet rule. pairs of -- O 0, 4, obeys O 8, 0, does not obey O 4, 0, obeys O 8, 0, obeys IICII

Fill in the lone pairs on each atom to give every main group element except hydrogen an octet.

Which of the following contains an atom that does NOT obey the octet rule? a.   NaCl b.   SiO2 c.   BrF3 d.  BrF

Bonding Electron Valence Shell Nonbonding Electron Approx. Bond Molecule or Lewis Electron VSEPR Geometric Molecular Ion Structure Pairs Pairs Pairs Formula Angle Shape 1. CH4 4 4 AX4 109.5° tetrahedral H:C:H H 2. Complete the table (as outlined above) for the following molecules/molecular ions, none of which obey the Lewis octet rule. Complete those that are assigned by your laboratory instructor. b. PCl,F3 с. BrF;

5. Write Lewis structures that obey the octet rule for each of the following: a) PHC1₂ c) Br₂CO b) ASH [3]

A chemist heats nitrogen and fluorine gas in a lab and observes the information of a brown gas with a strong odo. Using Lewis structures determine whether the compound formed from nitrogen and fluorine would be NF2 or NF3. 1. Whichcompound formed is ? 2. The Lewis structure for NF3 is correct because?

Part A The CFA molecule has a central C atom bonded to four F atoms, as shown in the figure. Which of the following statements about the CFA molecule is or are true? I. The electrons in the C-F bonds are attracted to both the C and F nuclei. II. The Lewis structure of CF4 shows four bonding pairs of electrons and no nonbonding pairs. III. Every atom in the CF4 molecule satisfies the octet rule. F F-C-F F O Only one of the statements is true O All three statements are true. O I and Il are true. O Il and III are true. O I and IIIl are true. Submit Request Answer dele Fendheal P Type here to search B. amazon Word Go FULL HD 1080