Lewis Structures

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

How many total valence electrons are in the nitrate ion (NO3-)?

Back

24

Front

What is a covalent bond?

Back

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

Front

What type of bond involves three pairs of shared electrons?

Back

Triple bond

Front

How many electrons does hydrogen need to achieve a stable electron configuration?

Back

2

Front

What is the correct Lewis structure for BF3?

Back

Option A.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to form bonds until they are surrounded by eight valence electrons, achieving a stable electron configuration.

Front

What is a lone pair of electrons?

Back

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

Front

What is the difference between a single bond, double bond, and triple bond?

Back

A single bond involves one pair of shared electrons, a double bond involves two pairs, and a triple bond involves three pairs.

Front

What is the significance of formal charge in Lewis Structures?

Back

Formal charge helps to determine the most stable Lewis structure by indicating the distribution of electrons among atoms.