AP Chem Unit 2 Review

Front

What is an ionic bond?

Back

An ionic bond results from the transfer of electrons from one atom to another, leading to the formation of charged ions that attract each other.

Front

What is the bond angle in a trigonal planar molecule?

Back

The bond angle in a trigonal planar molecule is 120 degrees.

Front

What is the formal charge?

Back

The formal charge is the charge assigned to an atom in a molecule, calculated by the formula: Formal Charge = Valence Electrons - (Nonbonding Electrons + 1/2 Bonding Electrons).

Front

Which element has the highest electronegativity?

Back

Chlorine (Cl) has the strongest attraction for electrons among the given options.

Front

What are lone pairs?

Back

Lone pairs are pairs of electrons that are not involved in bonding and are found in the outer shell of an atom.

Front

What is electronegativity?

Back

Electronegativity is a measure of an atom's ability to attract and hold onto electrons in a chemical bond.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

Front

What is a covalent bond?

Back

A covalent bond is formed when two atoms share one or more pairs of electrons.

Front

What is the difference between polar and nonpolar covalent bonds?

Back

Polar covalent bonds occur when electrons are shared unequally between atoms, while nonpolar covalent bonds occur when electrons are shared equally.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound.