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

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Presentation transcript:

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

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

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

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)

Which of the following VSEPR sketches matches phosphorus tribromide? a) b) c) d) (4,2) (4,1) (4,0) (3,0) BONUS…Can you name all of these shapes?

Does phosphorus tribromide have a dipole moment? If so, can you draw it? (4,1) Trigonal pyramidal B A 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!

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

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 ) C Cl F POLAR! Cl

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 ) C Cl NONPOLAR! Cl Cl