Valid Lewis 2

Front

What is a Lewis Structure?

Back

A Lewis Structure is a diagram that represents the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.

Front

What criteria must be met for a Lewis Structure to be considered valid?

Back

A valid Lewis Structure must satisfy the octet rule for main group elements, have the correct number of valence electrons, and show the correct arrangement of atoms.

Front

What is the octet rule?

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

Can sulfur have an expanded octet?

Back

No, sulfur cannot have an expanded octet; it typically follows the octet rule.

Front

Can chlorine have an expanded octet?

Back

Yes, chlorine can have an expanded octet due to its ability to utilize d orbitals.

Front

What are lone pair electrons?

Back

Lone pair electrons are pairs of valence electrons that are not shared with another atom and are not involved in bonding.

Front

What is the significance of formal charge in Lewis Structures?

Back

Formal charge helps determine the most stable Lewis Structure by indicating the distribution of electrons among atoms in a molecule.

Front

How do you calculate formal charge?

Back

Formal charge = (Valence electrons) - (Non-bonding electrons) - (Bonding electrons/2).

Front

What is a resonance structure?

Back

A resonance structure is one of two or more valid Lewis Structures for a single molecule that cannot be represented accurately by one structure alone.

Front

What is the role of double bonds in Lewis Structures?

Back

Double bonds are used to satisfy the octet rule for atoms that require more than one pair of electrons to achieve stability.