Electronegativity and Polarity Review

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What is the electronegativity difference that indicates a polar covalent bond?

Back

An electronegativity difference of 0.4 to 1.7 typically indicates a polar covalent bond.

Front

What is the electronegativity difference for HBr?

Back

0.7

Front

What does a nonpolar molecule mean?

Back

A nonpolar molecule is one where the electron distribution is equal, resulting in no overall dipole moment.

Front

What is a polar molecule?

Back

A polar molecule has an uneven distribution of electron density, resulting in a dipole moment.

Front

What is the bond type between carbon (C) and hydrogen (H)?

Back

The bond between C and H is non-polar covalent.

Front

What does it mean if a bond is non-polar covalent?

Back

It means there is a pair of electrons shared equally between the two atoms.

Front

How can you determine if a molecule is polar or nonpolar?

Back

You can determine polarity by examining the symmetry of the molecule and the electronegativity of the atoms involved.

Front

What is the significance of molecular geometry in determining polarity?

Back

Molecular geometry affects the distribution of charge, which influences whether a molecule is polar or nonpolar.

Front

What is the role of electronegativity in bond formation?

Back

Electronegativity determines how electrons are shared between atoms, influencing bond type (ionic, polar covalent, nonpolar covalent).