Name the Compound
Write the formula: carbon dioxide
CO2
How many total valence electrons are in H2O?
8
What is the shape for 1 lone pair and 2 bonds?
bent
Which atom is more electronegative between F and Br?
F
Name: C2H6
dicarbon hexahydride
How many electrons are shared in a double bond?
4
What is the shape for 4 bonds and 0 lone pairs
tetrahedral
Is the molecule H2O polar or nonpolar?
polar
What types of elements make up a covalent bond?
nonmetal + nonmetal
What is the magic number for CO2?
8
NH3 is trigonal pyramidal. Draw its Lewis structure.
. .
H -----N------H
l
H
nonpolar
Write the formula: tetrasulfur decafluoride
S4F10
How do you know when a double or triple bond is needed?
When the magic number does not equal the number of electron pairs
How many bonds and lone pairs does CO2 have if it is linear?
2 bonds, 0 lone pairs
Which way does the net dipole point in NH3?
towards nitrogen
Name: PO
Phosphorus monoxide
Draw the Lewis structure for NO2-1
1 double bond
1 lone pair on N
Trigonal planar and trigonal pyramidal both have 3 bonds. What is the difference between these shapes?
Planar has 0 lone pairs; pyramidal has 1 lone pair
Why do nonpolar molecules not have a net dipole?
Because the bonds are nonpolar OR the bond dipoles cancel out.