MP3: Lewis Structures

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

How many valence electrons does carbon have?

Back

Carbon has 4 valence electrons.

Front

What is the maximum number of bonds that carbon can form?

Back

Carbon can form a maximum of 4 bonds.

Front

What type of bond do hydrogen atoms form?

Back

Hydrogen atoms only form single bonds.

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

How many lone pairs are present in a water molecule (H2O)?

Back

There are 2 lone pairs of electrons in a water molecule.

Front

What is the molecular geometry of water (H2O)?

Back

The molecular geometry of water is bent or angular due to the two lone pairs of electrons.

Front

What is the significance of double bonds in Lewis structures?

Back

Double bonds indicate that two pairs of electrons are shared between two atoms, which can affect the molecule's shape and reactivity.

Front

How do you determine the total number of valence electrons in a molecule?

Back

To determine the total number of valence electrons in a molecule, add the valence electrons of all the atoms in the molecule.

Front

What is the correct Lewis structure for carbon dioxide (CO2)?

Back

The correct Lewis structure for carbon dioxide shows a carbon atom double bonded to two oxygen atoms.