Lewis Structures and Molecular Geometry

Front

What is the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons in order to have eight electrons in their valence shell, achieving a stable electron configuration.

Front

How many valence electrons does hydrogen have?

Back

Hydrogen has 1 valence electron.

Front

What is a Lewis structure?

Back

A Lewis structure is a diagram that represents the bonding between atoms of a molecule and the lone pairs of electrons that may exist.

Front

What is the molecular geometry of CH₄?

Back

The molecular geometry of CH₄ (methane) is tetrahedral.

Front

What type of bond is formed between two nonmetals?

Back

A covalent bond is formed between two nonmetals.

Front

What is the formula for water?

Back

The formula for water is H₂O.

Front

What is the significance of lone pairs in Lewis structures?

Back

Lone pairs are non-bonding pairs of electrons that can affect the shape and polarity of a molecule.

Front

What is the molecular geometry of CO₂?

Back

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

Front

How many total electrons are in the Lewis structure of NH₃?

Back

The Lewis structure of NH₃ (ammonia) has a total of 8 electrons.

Front

What is the name of the compound N₂O₄?

Back

The name of the compound N₂O₄ is dinitrogen tetroxide.