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

How many valence electrons does Carbon have?

Back

Carbon has 4 valence electrons.

Front

What does a single bond represent in a Lewis Structure?

Back

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

Front

What does a double bond represent in a Lewis Structure?

Back

A double bond represents the sharing of two pairs of electrons between two atoms.

Front

What does a triple bond represent in a Lewis Structure?

Back

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

Front

How many electrons are shared in a double bond?

Back

2 electrons are shared in a double bond.

Front

How many electrons are shared in a triple bond?

Back

6 electrons are shared in a triple bond.

Front

What is the molecular geometry of CCl4?

Back

The molecular geometry of CCl4 (carbon tetrachloride) is tetrahedral.

Front

What is the significance of lone pairs in Lewis Structures?

Back

Lone pairs are pairs of valence electrons that are not shared with another atom and can affect the shape and reactivity of the molecule.

Front

How do you determine the total number of valence electrons in a molecule?

Back

To determine the total number of valence electrons, add the valence electrons of each atom in the molecule.