Polarity and Electronegativity

Question 1

How does electronegativity play a role in Larger atoms?

Answer 1

Larger atoms have a weaker hold on their valence electrons; they have lower electronegativity.

Question 2

What is Electronegativity?

Answer 2

The ability of an atom to attract the shared electron in the bond.

High electronegativity = Strong attraction/affinity for the electron (vice versa)

Question 3

Effects on Smaller Atoms when bonding?

Answer 3

Smaller Atoms have a tighter hold on their electrons, so when they bond they’re less willing to share electrons.

Question 4

Effects on Larger Atoms when bonding?

Answer 4

Larger Atoms have a looser hold on their electrons, so when they bond they’re more willing to share electrons.

Question 5

What are the three bond types?

Answer 5

• Large difference in electronegativity
• Equal electronegativity values
• Small difference in electronegativity