Chemical Bonding Review

Front

What is the Lewis Dot Structure for ammonia (NH3)?

Back

The Lewis Dot Structure for ammonia shows a nitrogen atom (N) in the center with three hydrogen atoms (H) bonded to it, and a lone pair of electrons on the nitrogen.

Front

What do covalent compounds do?

Back

Covalent compounds share electrons between atoms.

Front

Is PH3 polar or nonpolar?

Back

PH3 is a polar molecule due to the difference in electronegativity between phosphorus and hydrogen.

Front

What does VSEPR theory predict?

Back

VSEPR theory is used to predict the molecular shape of a molecule based on the repulsion between electron pairs.

Front

What is the molecular shape of water (H2O)?

Back

The molecular shape of water (H2O) is bent.

Front

Define covalent bond.

Back

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

Front

What is electronegativity?

Back

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

Front

What is the difference between polar and nonpolar molecules?

Back

Polar molecules have a net dipole moment due to the uneven distribution of electrons, while nonpolar molecules do not.

Front

What is a lone pair of electrons?

Back

A lone pair of electrons is a pair of valence electrons that are not shared with another atom.

Front

What is the significance of 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.