4th - Covalent Formulas, Naming, and Electronegativity

Front

What is a covalent bond?

Back

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

Front

Define electronegativity.

Back

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

Front

What is the Lewis structure for NH₃?

Back

The Lewis structure for NH₃ (ammonia) shows a nitrogen atom bonded to three hydrogen atoms, with one lone pair of electrons on nitrogen.

Front

How many valence electrons does nitrogen have?

Back

Nitrogen has 5 valence electrons.

Front

What is the molecular shape of CO₂?

Back

The molecular shape of CO₂ (carbon dioxide) is linear.

Front

What type of bond is formed between nitrogen and hydrogen?

Back

A covalent bond is formed between nitrogen and hydrogen.

Front

How many total valence electrons are in CH₄?

Back

CH₄ (methane) has a total of 8 valence electrons participating in bonding.

Front

What is the molecular geometry of CH₄?

Back

The molecular geometry of CH₄ (methane) is tetrahedral.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons.

Front

What is the significance of the octet rule in covalent bonding?

Back

The octet rule states that atoms tend to form bonds until they are surrounded by eight valence electrons, achieving a stable electron configuration.