Ant Chem Polarity

Ant Chem Polarity

Sharing Electrons

- Covalent bonds share electrons

- They do not always share the electrons evenly.

- The atom has a stronger grip on the electrons is slightly more negative

- The atom that has a weaker grip will be slightly positive

Electronegativity

- The ability of an atom to attract electrons

- More electronegative= able to attract electrons

- Less electronegative= not able to attract electrons

Multiple Choice

What type of bond is I-I

• Polar

• Nonpolar

• Ionic

Multiple Choice

What type of bond is Br-Cl

• Polar

• Nonpolar

• Ionic

Multiple Choice

What type of bond is Al-F

• Polar

• Nonpolar

• Ionic

Showing Polarity

-The greek letter delta, δ, with a + or – shows the partial charge

-Also an arrow is used pointing towards the more electronegative (therefore slightly negative) element

Molecular Polarity

• Molecular Polarity is different from the polarity of the bonds

• When a molecule is symmetrical it is nonpolar

• A nonsymmetrical molecule is polar

Multiple Choice

Is the molecule Polar or nonpolar?

• Polar

• Nonpolar

Multiple Choice

Is the molecule polar or nonpolar?

• Polar

• Nonpolar

Multiple Choice

Is the molecule polar or nonpolar?

• Polar

• nonpolar