1. The relative ability of an atom to attract bonded electrons to itself is called what?
Electronegativity
Homework –
Study for tomorrow’s Ch12 Exam

2. Periodic Trends Atomic radius decreases Ionization energy increases
Electronegativity increases
Ionization energy decreases
Electronegativity decreases
Atomic radius increases 1 2 3 4 5 6 7 8

3. Which of the following has the largest atomic radius: P, S, Cl or As
Which of the following has the largest atomic radius: P, S, Cl or As? BONUS…Which is larger K or K+?
Arsenic

4. ITS SHAPE! (or Molecular Geometry)
Valence Shell Electron Pair Repulsion Theory predicts what about a molecule?
ITS SHAPE! (or Molecular Geometry)
BONUS…
What shape is shown here?
(5,0)
BA5

6. Does phosphorus tribromide have a dipole moment? If so, can you draw it?
(4,1)
Trigonal pyramidal
Yes it does! Why?
Because one side of the m’c is a lot more negative than the rest of the m’c.
Polar m’c w/3 polar bonds!

7. Draw a proper Lewis structure for carbonmonofluoridetrichloride (and no, we won’t be using clickers for this ) C Cl F Cl

8. Is carbonmonofluoridetrichloride an ionic, polar or nonpolar molecule
Is carbonmonofluoridetrichloride an ionic, polar or nonpolar molecule? (and yes, we will be using clickers for this )
POLAR! C Cl F Cl

9. Is carbontetrachloride an ionic, polar or nonpolar molecule
Is carbontetrachloride an ionic, polar or nonpolar molecule? (and yes, we will be using clickers for this )
NONPOLAR! C Cl Cl Cl