Lewis Dot Structure Covalent Molecules

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 valence electrons, achieving a stable electron configuration.

Front

How many valence electrons do most elements need according to the octet rule?

Back

Most elements need 8 valence electrons according to the octet rule.

Front

What is a lone pair in a Lewis structure?

Back

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

Front

How many lone pairs are in the Lewis structure of NH3?

Back

There is 1 lone pair in the Lewis structure of NH3.

Front

What is the Lewis structure?

Back

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

Front

How many valence electrons does Hydrogen have?

Back

Hydrogen has 1 valence electron.

Front

How many valence electrons does Nitrogen have?

Back

Nitrogen has 5 valence electrons.

Front

What is the significance of valence electrons in covalent bonding?

Back

Valence electrons are important in covalent bonding because they are the electrons involved in forming bonds between atoms.

Front

What is the correct Lewis structure for PBr3?

Back

The correct Lewis structure for PBr3 is structure D.

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.