Bond Prediction and Polarity

Front

What causes a partial charge on a molecule?

Back

Unequal sharing of electrons, an electronegativity difference between 0.4 and 1.8, and the shape of the molecule.

Front

What is electronegativity?

Back

Electronegativity is a measurement of the ability of a nucleus to attract bonding electrons.

Front

Which of the following represents a polar molecule? H2, H2O, CO2, CCl4?

Back

H2O is a polar molecule.

Front

What type of bond is formed when there is a significant electronegativity difference?

Back

A polar covalent bond is formed.

Front

What is the electronegativity difference in the bonds of CH4?

Back

The electronegativity difference in CH4 is 0.4.

Front

What is a non-polar covalent bond?

Back

A non-polar covalent bond is formed when electrons are shared equally between two atoms.

Front

What is a polar covalent bond?

Back

A polar covalent bond is formed when electrons are shared unequally between two atoms.

Front

What is an ionic bond?

Back

An ionic bond is formed when one atom donates an electron to another atom, resulting in charged ions.

Front

What is the shape of a water molecule?

Back

The shape of a water molecule is bent due to the two lone pairs of electrons on the oxygen atom.

Front

How does electronegativity affect molecular polarity?

Back

Electronegativity differences between atoms in a molecule determine the distribution of electron density, leading to polarity.