Bond Polarity and Polar Molecules Flashcards
1
Q
What is Electronegativity?
A
The ability of an atom to attract a bonding pair of electrons
2
Q
Which element is the most electronegative?
A
Fluorine
3
Q
How does electronegativity change along a groups and periods?
A
Increases across a period
Increase going up a group
4
Q
What creates a dipole?
A
Electrons being attracted to one element more than another.
5
Q
What elements have negative dipoles?
A
Ones that attract electrons more than others
6
Q
What elements have positive dipoles?
A
Ones that attract electrons less than others
7
Q
What creates a permanent dipole?
A
When two atoms in a molecule have different electronegativity
8
Q
How do you tell if a molecule if polar or non-polar? (What points do you write)
A
- Which is more electronegative
- Are there polar bonds?
- Is the molecule symmetry?
- Do the polar bonds cancel out?
- Polar or non-polar
