8.3 The Periodic Table

Front

What is a vertical column in the periodic table called?

Back

Group

Front

What is the horizontal row on the periodic table called?

Back

Period

Front

What do elements in a group have in common?

Back

They have similar chemical properties.

Front

What determines an element's identity?

Back

The number of protons.

Front

What does the number at the bottom of each square on the periodic table represent?

Back

Atomic mass.

Front

What is the term for the number of protons in an atom?

Back

Atomic number.

Front

What is the significance of the atomic number in the periodic table?

Back

It determines the element's position and identity.

Front

What are the two main categories of elements in the periodic table?

Back

Metals and nonmetals.

Front

What is a chemical symbol?

Back

A one or two-letter abbreviation for an element.

Front

What is the periodic law?

Back

The properties of elements are periodic functions of their atomic numbers.