Lewis Structures (Basic)

Front

What is the octet rule?

Back

The octet rule states that most elements need 8 valence electrons to be stable.

Front

How many valence electrons does hydrogen need to be stable?

Back

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

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.

Front

What is the significance of valence electrons in Lewis structures?

Back

Valence electrons determine how atoms bond and interact with each other in a molecule.

Front

What is the correct Lewis structure for CH₃Cl?

Back

The correct Lewis structure for CH₃Cl is represented by Option A.

Front

What is the correct Lewis structure for PBr₃?

Back

The correct Lewis structure for PBr₃ is represented by structure D.

Front

What is the formula for silicon tetrafluoride?

Back

The correct formula for silicon tetrafluoride is SiF₄.

Front

What are lone pairs in a Lewis structure?

Back

Lone pairs are pairs of valence electrons that are not involved in bonding and are located on an atom.

Front

What is the difference between bonding pairs and lone pairs?

Back

Bonding pairs are shared between atoms to form bonds, while lone pairs are not shared and remain on a single atom.

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.