Electronegativity & Boiling Points

What does the character of a chemical bond relate to according to the main idea in Section 5: Electronegativity and Polarity?

• The size of the atoms involved in the bond

• The temperature at which the bond occurs

• Each atom's attraction for the electrons in the bond

• The color of the chemical compound

How is electronegativity used to determine bond type?

• It determines the molecular weight of the compound.

• It is used to measure the energy of the bond.

• It predicts how electrons are shared between atoms.

• It identifies the solubility of the compound in water.

How do polar and nonpolar covalent bonds and polar and nonpolar molecules compare and contrast?

• Polar bonds involve equal sharing of electrons, while nonpolar bonds involve unequal sharing.

• Nonpolar molecules dissolve well in water, unlike polar molecules.

• Polar bonds involve unequal sharing of electrons, while nonpolar bonds involve equal sharing.

• Polar molecules are generally gases at room temperature, while nonpolar molecules are liquids or solids.

What term is used to describe the measure of the tendency of an atom to attract a bonding pair of electrons?

• Electron affinity

• Ionization energy

• Electronegativity

• Covalent radius

Which type of bond is formed when there is an unequal sharing of electrons between atoms?

• Ionic bond

• Nonpolar covalent bond

• Metallic bond

• Polar covalent bond

What does electronegativity measure in an atom?

• The ability of an atom to release electrons

• The tendency of an atom to pull bonding electrons to itself

• The capacity of an atom to engage in chemical reactions

• The number of protons in the nucleus

Which element has the highest electronegativity value according to the chart?

• Fluorine (F)

• Chlorine (Cl)

• Bromine (Br)

• Iodine (I)

What type of chemical bond is formed when the electronegativity difference between two atoms is greater than 1.7?

• Ionic

• Polar covalent

• Non-polar covalent

• Metallic

Which type of bond is characterized by an electronegativity difference of less than 0.4?

• Ionic

• Polar covalent

• Non-polar covalent

• Hydrogen bond

If the electronegativity difference between two atoms ranges from 0.4 to 1.7, what type of bond is likely formed?

• Ionic

• Polar covalent

• Non-polar covalent

• Metallic