Periodic Table Basics

Front

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

Back

Atomic mass.

Front

What is each column in the periodic table called?

Back

Group.

Front

How are elements organized in the periodic table?

Back

By atomic numbers.

Front

What are periods on the periodic table?

Back

Horizontal rows.

Front

In which group is Magnesium found?

Back

Group 2.

Front

What does the atomic number represent?

Back

The number of protons in an atom.

Front

What is the chemical symbol for Gold?

Back

Au.

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic properties.

Front

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

Back

Metals and nonmetals.

Front

What is a noble gas?

Back

An element in Group 18 that is inert and does not readily react with other elements.