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 valence electrons does Nitrogen (N) have?

Back

Nitrogen has 5 valence electrons.

Front

What is the total number of valence electrons in the nitrate ion (NO3-)?

Back

The total number of valence electrons in the nitrate ion (NO3-) is 24.

Front

What is the correct formula for Silicon Tetrafluoride?

Back

The correct formula for Silicon Tetrafluoride is SiF4.

Front

How many valence electrons are in the compound N2O?

Back

There are 16 valence electrons in the compound N2O.

Front

How many valence electrons should Lithium (Li) have in its Lewis dot model?

Back

Lithium should have 1 valence electron in its Lewis dot model.

Front

What does a dot diagram represent?

Back

A dot diagram represents the valence electrons of an atom and how they are arranged in a molecule.

Front

What is the significance of lone pairs in Lewis Structures?

Back

Lone pairs are pairs of valence electrons that are not involved in bonding and can affect the shape and reactivity of the molecule.

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 each atom and account for any charges.

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.