Lewis Structures

Front

What is a Lewis Structure?

Back

A Lewis Structure is a diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.

Front

What does a single bond represent in a Lewis Structure?

Back

A single bond represents one pair of shared electrons between two atoms.

Front

What does a double bond represent in a Lewis Structure?

Back

A double bond represents two pairs of shared electrons between two atoms.

Front

What does a triple bond represent in a Lewis Structure?

Back

A triple bond represents three pairs of shared electrons between two atoms.

Front

How many valence electrons does hydrogen have?

Back

Hydrogen has 1 valence electron.

Front

How many valence electrons are needed for hydrogen to be stable?

Back

Hydrogen needs 2 electrons in its valence shell to be stable.

Front

What is the Lewis dot structure for fluorine (F2)?

Back

The Lewis dot structure for F2 shows two fluorine atoms, each with 7 valence electrons, sharing one pair of electrons.

Front

What is the significance of lone pairs in Lewis Structures?

Back

Lone pairs represent non-bonding electrons that can affect the shape and reactivity of the molecule.

Front

What is the Lewis Structure for ammonia (NH3)?

Back

The Lewis Structure for NH3 shows nitrogen with 5 valence electrons and three hydrogen atoms each sharing one pair of electrons with nitrogen.

Front

What is the Lewis Structure for carbon dioxide (CO2)?

Back

The Lewis Structure for CO2 shows carbon in the center with two double bonds to two oxygen atoms.