Valence Electrons and Lewis Dot Structures

Front

According to the octet rule, most elements need _______ valence electrons.

Back

8

Front

How many valence electrons does Aluminum have?

Back

3

Front

How many valence electrons does Tin (Sn) have?

Back

4

Front

What is a valence electron?

Back

An electron that is found in the outermost shell of an atom.

Front

What is the octet rule?

Back

The principle that atoms tend to bond in such a way that they have eight electrons in their valence shell.

Front

How do you determine the number of valence electrons in an element?

Back

By looking at its group number in the periodic table.

Front

What is a Lewis Dot Structure?

Back

A diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist.

Front

Why are valence electrons important?

Back

They determine how an atom can bond with other atoms.

Front

What does a full valence shell indicate?

Back

An atom is stable and less likely to react with other atoms.

Front

Which group of the periodic table has the most stable elements?

Back

Noble gases, because they have full valence shells.