Lewis Dot Structures

Front

What is a Lewis Dot Structure?

Back

A Lewis Dot 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 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 based on their group number in the periodic table.

Front

What is the significance of lone pairs in Lewis Dot Structures?

Back

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

Front

What does a single bond represent in a Lewis Dot Structure?

Back

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

Front

What does a double bond represent in a Lewis Dot Structure?

Back

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

Front

What does a triple bond represent in a Lewis Dot Structure?

Back

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

Front

How do you represent a covalent bond in a Lewis Dot Structure?

Back

A covalent bond is represented by a line connecting the symbols of the two atoms involved.

Front

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

Back

The Lewis Dot Structure for ammonia shows nitrogen in the center with three hydrogen atoms bonded to it and one lone pair of electrons on nitrogen.

Front

What is the correct Lewis Dot Structure for fluorine (F2)?

Back

The Lewis Dot Structure for fluorine shows two fluorine atoms bonded by a single bond, each with three lone pairs of electrons.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.