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

What does the octet rule state?

Back

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

Front

How many valence electrons does nitrogen (N) have?

Back

Nitrogen has 5 valence electrons.

Front

What is the 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 Lewis Dot Structure for carbon tetrachloride (CCl4)?

Back

The Lewis Dot Structure for CCl4 shows carbon in the center with four chlorine atoms bonded to it, and no double bonds.

Front

How many double bonds are present in CCl4?

Back

CCl4 has 0 double bonds.

Front

What is the correct Lewis structure for boron trifluoride (BF3)?

Back

The correct Lewis structure for BF3 shows boron in the center with three fluorine atoms bonded to it, and no lone pairs on boron.

Front

What is the Lewis Dot Structure for phosphorus tribromide (PBr3)?

Back

The Lewis Dot Structure for PBr3 shows phosphorus in the center with three bromine atoms bonded to it and one lone pair of electrons on phosphorus.

Front

How many valence electrons does chlorine (Cl) have?

Back

Chlorine has 7 valence electrons.

Front

What is a lone pair in a Lewis Dot Structure?

Back

A lone pair is a pair of valence electrons that are not shared with another atom and are not involved in bonding.