Lewis Structures: Polar v/s NonPolar Notes

Lewis Structures: Polar v/s NonPolar Notes

Polar Bonds

• Unequal sharing of electrons

• Have 2 poles (like magnets - N/S or +/-)

• Must have a HIGHLY ELECTRONEGATIVE ELEMENT = A SUPER 7

Multiple Select

Which correctly describes polar bonds?

• Unequal sharing of electrons

• Equal sharing of electrons

• Has a highly electronegative element

• Elements are all similar in electronegative

Multiple Choice

Which compound has polar bonds?

• CH₄

• NO₃

• SH₂

• PH₃

Nonpolar Bonds

• Electrons are shared equally between atoms

• No super 7 element

• No highly electronegative element

• No "poles" (+ or - areas)

Polar Compounds

• Must have a super 7 = have a polar bond! AND

• Must have a lone pair of electrons (be distorted) OR

• Must be Asymmetrical (not balanced)

Nonpolar Compounds

• No super 7 (no polar bond) OR

• Has a polar bond (super 7) BUT IS SYMMETRICAL

• NO LONE PAIRS

Multiple Choice

Which of the following MIGHT be a polar compound?

• CH₄

• PF₃

Multiple Choice

Which of the following has polar bonds BUT IS A NONPOLAR COMPOUND?

Multiple Choice

Which of the following is a POLAR COMPOUND?