Polarity Review Quiz

What is electronegativity?

• The tendency of an atom to lose electrons

• The measure of an atom's size

• The ability of an atom to repel electrons

• A measure of the tendency of an atom to attract a bonding pair of electrons.

Which element has the highest electronegativity?

• Oxygen

• Fluorine

• Carbon

• Sodium

How does electronegativity affect bond polarity?

• It increases bond polarity.

• It changes the type of bond.

• It has no effect on bond polarity.

• It decreases bond polarity.

What is the difference between polar and nonpolar covalent bonds?

• Polar covalent bonds have unequal sharing of electrons.

• Nonpolar covalent bonds have unequal sharing of electrons.

• Polar covalent bonds have no sharing of electrons.

• Polar covalent bonds have equal sharing of electrons.

Explain the concept of dipole moment in relation to polarity.

• Dipole moment is a measure of the temperature of a molecule.

• Dipole moment is a measure of the separation of positive and negative charges in a molecule, which determines its polarity.

• Dipole moment is a measure of the size of a molecule.

• Dipole moment is a measure of the speed of a molecule.

What is the electronegativity difference between atoms in a nonpolar covalent bond?

• positive

• 1

• zero

• negative

How does the electronegativity difference between atoms in a bond determine the type of bond formed?

• It determines the temperature of the bond

• It indicates the bond's length

• It determines the color of the bond

• It indicates the degree of polarity in the bond.

What is the electronegativity trend in the periodic table?

• Increases from right to left and decreases from bottom to top

• Remains constant across the period and increases down the group

• Increases from left to right and decreases from top to bottom

• Decreases from left to right and increases from top to bottom

How does the size of an atom affect its electronegativity?

• Larger atoms have higher electronegativity

• Smaller atoms have higher electronegativity

• Smaller atoms have lower electronegativity

• The size of the atom does not affect its electronegativity

Explain the concept of partial charges in a polar covalent bond.

• Partial charges are the result of the complete sharing of electrons in a polar covalent bond.

• Partial charges do not exist in a polar covalent bond.

• Partial charges refer to the slight positive or negative charges that result from the unequal sharing of electrons in a polar covalent bond.

• Partial charges are the result of the equal sharing of electrons in a polar covalent bond.