Ionic
Covalent
VSEPR
Polarity
Misc.
100
What is the octet rule?
When Atoms gain or lose electrons in order to gain a complete outer shell consisting of electrons making the atom happy.
100
Covalent bonds are formed between what type of atoms?
Nonmetals
100
What is the name of this shape?
Trigonal Planar
100
What is the electronegativity range for a polar covalent bond.
0.5 - 2.0
100
How many total valence electrons in I2 :
14 valence electrons
200
An Ionic compound is between a ___ and a _____?
Metal and non metal
200
What is the difference between a single bond and a double bond?
A single bond is formed when two atoms share one pair of electrons, whereas a double bond is formed when two atoms share two pairs
200
Name the shape and degree of CH4:
Tetrahedral - 109.5
200
What type of bond has △EN of 2.0 or greater?
Ionic
200
How does electronegativity increase on the periodic table?
Increases vertically going up
Increases horizontally going right
300
What is the correct name for K20?
Potassium Oxide
300
What is the chemical formula for Dinitrogen tetroxide?
N2O4
300
What is the shape of angle e (C – O – H)?
Bent
300
What is the △EN of the bond H-Cl and what type of bond is it?
0.96 and polar covalent
300
What is the difference between the bond lengths of a compound with Si - N single bond AND A DOUBLE BOND OF THE SAME COMPOUND.
Si = N is shorter due to the stronger electrostatic force attraction
400
What is the correct charge for Phosphorus?
Negative Three
400
What is the name for PCl5?
Phosphorus pentachloride
400
What effect do the lone pairs have on the bonding angles? - 
More lone pairs decrease the bond angle because of the repulsion
400
Which atom is polar in the bond S-Cl?
Cl
400
What 3 elements don’t have to follow the octet rule to be happy?
Be- 4
B- 6
H- 2
500
What is the correct lewis dot structure for CaBr2?
500
Draw the Lewis Structure for SF2. Shape can be incorrect.
500
What are one pro and con each about Lewis Structures and Ball and Stick Models for molecules?
Lewis:
Pro: easy to draw & shows lone pairs of electrons
Con: Doesn’t show shape or angle accurately
2D only
Ball & Stick:
Pro: Shows shape and angle accurately (3D)
Con: does not show lone pairs (only the effects of them)
500
Which of these molecules are polar?
B
500
Rank the bond lengths of C – C, C – O, and C – N and justify your answer.
C – C > C – N > C – O because Carbon is the largest of these atoms and Oxygen is the smallest of these. Atoms get smaller in size moving left to right on the periodic table.