Atomic Structure and the Periodic Table

Front

What is the smallest particle of any particular type of matter?

Back

Atom

Front

How are elements in the periodic table arranged?

Back

By atomic number.

Front

What is the mass number of an element?

Back

The number of protons and neutrons in the nucleus.

Front

What does the atomic number represent?

Back

The number of protons in an atom.

Front

True or False: The atomic number is the number of protons and electrons in an atom.

Back

True.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom.

Front

What is an element?

Back

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

Front

What is a compound?

Back

A substance formed when two or more elements chemically bond together.

Front

What is the difference between metals, nonmetals, and metalloids?

Back

Metals are good conductors of heat and electricity, nonmetals are poor conductors, and metalloids have properties of both.

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number and properties.