Determine the molecular geometry about interior atom and draw molecule. (Skeletal structure is indicated in parentheses.) . N2H4(H2NNH2)

Polarity

Determine the geometry about interior atom in molecule and draw the molecule. (Skeletal structure is indicated in parentheses.) NH2CO2H (H2NCOOH both O atoms attached to C)

Part B: Without building model complete the following table. Total Sketch of Molecular Lewis Name of the Molecule is number of three- formula valence clectron dot molecular polar or dimensional electrons structure geometry nonpolar? geometry BF3 NCI3 BeH2 PCI3 AICI3 CCI4 C2H6

Which of the following elements are capable of expanding their octet? Select all that apply. Br Se F

Determine the geometry about each interior atom in each molecule and draw the molecule. (Skeletal structure is indicated in parentheses.)a. CH3NH2 (H3CNH2)b. CH3CO2CH3 (H3CCOOCH3 both O atoms attached to second C)c. NH2CO2H (H2NCOOH both O atoms attached to C)

Molecular Shape:trigonal planar Questions: (Complete sentences are not necessary) 1 Examine the Lewis structure for each of the molecular shapes formed above. (ignore BrF!) Complete the following table based upon both the number of unshared electron pairs around the central atom and also the number of bond groups that are around the central atom. For example. in the following Lewis structure of PBr,, phosphonus (the central atom) has one pair of unshared electrons and three bond ypoups surrounding it. :Br: Br (Note: single, double, and triple bonds all count as single bond groups) Number of Bond Groups Number of Unshared Electron Pairs Around the Central Atom Molecular Shape Around Central Atom Linear Bent Trigonal Planar Trigonal Pyramidal Tetrahedral 2. What is the electrostatic charge of all electron groups. either shared (Le. bonds) or unshared? Since all electron groups have this same charge. do they attract or repel each other?

. Indicate the electron and molecular geometry of every non-hydrogen atom in the molecules depicted below.

Decide whether the Lewis structure proposed for each molecule is reasonable or not. proposed Lewis structure Is this a reasonable structure? If not, why not? OF molecule Yes, it's a reasonable structure. No, the total number of valence electrons is wrong. 0-c-0 The correct number is: O co, No,ome atoms have the wrong number of electrons around them. The symbols of the problem atoms are: O Yes, it's a reasonable structure. No, the total number of valence electrons is wrong. .. The correct number is: O o, 0=0=0 No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: O Yes, it's a reasonable structure. :Cl : No, the total number of valence electrons is wrong. BCI, The correct number is: O : Cl –B - CI : No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: O * If two or more atoms have the wrong number of valence electrons around them, just enter the chemical symbol for the atom as many times as…

NI3 Sketch the proper Lewis structure for this substance. Be sure to follow octet/duet rules for each atom and use the total number of valence electrons available. Use your drawing to answer the following questions. Count the total number of electron domainskurrounding the central atom. Enter the value only. Enter the name corresponding to the electron domain geometry. Choices are: linear, trigonal planar, or tetrahedral. Enter the name corresponding to the molecular geometry. Choices are: linear, trigonal planar, tetrahedral, bent, or trigonal pyramidal. Predict the bond angle. Enter the value without units. Use a "<" if needed.