Valence Electrons

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

How many valence electrons does Sodium (Na) have?

Back

1

Front

How many valence electrons does Chlorine (Cl) have?

Back

7

Front

What is the chemical symbol for Potassium?

Back

K

Front

Why are valence electrons important?

Back

They determine how an atom can bond with other atoms and influence the chemical properties of the element.

Front

What is the maximum number of valence electrons an atom can have?

Back

8, following the octet rule.

Front

Which group of the periodic table has 1 valence electron?

Back

Group 1, the alkali metals.

Front

Which group of the periodic table has 7 valence electrons?

Back

Group 17, the halogens.

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.

Front

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

Back

You can determine the number of valence electrons by looking at the group number of the element in the periodic table.