Atoms, The Periodic Table, Elements, Compounds, and Mixtures

Front

What is an atom?

Back

The smallest unit of matter that retains the properties of an element.

Front

What is the periodic table?

Back

A chart that organizes all known elements by their atomic number, electron configuration, and recurring chemical properties.

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 a mixture?

Back

A combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

What is a neutron?

Back

A subatomic particle found in the nucleus of an atom that has no charge (neutral).

Front

What is a proton?

Back

A positively charged subatomic particle found in the nucleus of an atom.

Front

What is the charge of an electron?

Back

Negative.

Front

What is a heterogeneous mixture?

Back

A mixture where the components are easily distinguishable and can be separated physically.

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout and the components are not easily distinguishable.