Understanding the Periodic Table

What are the columns referred to on the Periodic Table of Elements?

• Families or groups

• Periods

What are the rows referred to on the Periodic Table of Elements?

• Families or groups

• Periods

Atomic Mass equals the combined number of

• Protons and Electrons

• Electrons and Neutrons

• Protons and Neutrons

The number of valence electrons ________ by 1 as you move across the period.

• increases

• decreases

Valence electrons are

• the electrons in the outer most energy level

• all the electrons in the atom

The first letter of the chemical symbol is always a capital letter and the second is always lowercase

• True

• False

What is the name of group number 1?

• halogens

• noble gases

• alkali metals

• alkaline earth metals

What is the name of group number 2?

• transition metals

• halogens

• metaloids

• alkaline earth metals

where are the metaloids found

• far left, vertical

• stair step/diagonal

• far right horizontal

• at the bottom

What group number are the halogens found?

• 18 (8A)

• 1

• 2

• 17 (7A)