Electronegativity and Bond Polarity

Question 1

what is electronegativity?

Answer 1

• the ability of an atom to attract the bonding electrons in a covalent bond

Question 2

where does electronegativity increase?

Answer 2

electronegativity increases as you move towards F

Question 3

what are polar bonds?

Answer 3

molecules containing covalently bonded atoms with different electronegativities

Question 4

when does a molecule have an overall dipole? and an example?

Answer 4

• when the molecule is not symmetrical
• dipoles don’t cancel out
• e.g. water

Question 5

when does a molecules not have an overall dipole? and an example?

Answer 5

• the molecule is symmetrical
• dipoles cancel out

Question 6

how are dipoles drawn?

Answer 6

from delta positive to delta negative