Unit 3 - Chemical Bonding - Honors Chemistry Final Exam Review

Front

What is a chemical bond?

Back

A chemical bond is a lasting attraction between atoms, ions, or molecules that enables the formation of chemical compounds.

Front

What are the main types of chemical bonds?

Back

The main types of chemical bonds are ionic bonds, covalent bonds, and metallic bonds.

Front

Define ionic bond.

Back

An ionic bond is a type of chemical bond formed through the electrostatic attraction between oppositely charged ions, typically between a metal and a nonmetal.

Front

Define covalent bond.

Back

A covalent bond is a type of chemical bond where two atoms share one or more pairs of electrons.

Front

What is a metallic bond?

Back

A metallic bond is a type of chemical bond that occurs between metal atoms, characterized by a 'sea of electrons' that are free to move around.

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 significance of electronegativity difference in bonding?

Back

The electronegativity difference between two atoms determines the type of bond formed: a difference of 0.0-0.4 indicates a nonpolar covalent bond, 0.4-1.7 indicates a polar covalent bond, and above 1.7 indicates an ionic bond.

Front

What is a polar covalent bond?

Back

A polar covalent bond is a type of bond where electrons are shared unequally between two atoms, resulting in a molecule with a slight electrical dipole moment.

Front

What is the formula for magnesium chloride?

Back

The formula for magnesium chloride is MgCl2.

Front

What is the difference between ionic and covalent compounds?

Back

Ionic compounds are formed from the transfer of electrons between metals and nonmetals, while covalent compounds are formed from the sharing of electrons between nonmetals.