Atoms-Elements-Molecules-Compounds

Front

What is at the center of every atom?

Back

nucleus

Front

Which of the following cannot be broken down into something simpler?

Back

an element

Front

What is the Periodic Table?

Back

A chart that shows all the elements scientists have discovered/created.

Front

How many elements are on the Periodic Table?

Back

118

Front

When two or more atoms combine, what forms?

Back

molecule

Front

What is an atom?

Back

The basic unit of a chemical element.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is a compound?

Back

A substance formed when two or more different elements combine chemically.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances.

Front

What are the three main subatomic particles in an atom?

Back

Protons, neutrons, and electrons.