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

What does it mean for a Lewis Structure to be valid?

Back

A valid Lewis Structure accurately represents the arrangement of electrons, satisfies the octet rule for main group elements, and has the correct number of valence electrons.

Front

What is the octet rule?

Back

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

Front

Can hydrogen have an expanded octet?

Back

False. Hydrogen can only accommodate a maximum of 2 electrons in its valence shell.

Front

What is a bond order in a Lewis Structure?

Back

Bond order is the number of chemical bonds between a pair of atoms. It can be calculated as the number of bonding pairs of electrons divided by the number of bond groups.

Front

What are lone pair electrons?

Back

Lone pair electrons are pairs of valence electrons that are not involved in bonding and are localized on a single atom.

Front

What is the significance of charge in a Lewis Structure?

Back

The charge in a Lewis Structure indicates the overall charge of the molecule or ion, which must be balanced by the number of electrons and protons.

Front

What does an incorrect bond order indicate?

Back

An incorrect bond order indicates that the number of bonds represented in the Lewis Structure does not match the actual bonding situation of the molecule.

Front

How do you determine if a Lewis Structure is incorrect?

Back

A Lewis Structure is incorrect if it violates the octet rule, has an incorrect number of electrons, or misrepresents the charge.

Front

What is the role of valence electrons in Lewis Structures?

Back

Valence electrons are the outermost electrons of an atom and are involved in forming bonds and lone pairs in Lewis Structures.