Atoms, Elements, Compounds, Mixtures

Front

What is an element?

Back

A substance that cannot be chemically broken down into simpler substances. Example: Sodium (Na).

Front

What is a proton?

Back

A subatomic particle with a positive charge, found inside the nucleus of an atom.

Front

What is an atom?

Back

The smallest part of an element that can be identified as that element.

Front

What is a neutron?

Back

A subatomic particle with no charge, found inside the nucleus of an atom.

Front

What is a compound?

Back

A substance made up of two or more elements that are chemically combined. Example: Table salt (NaCl).

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically combined.

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout. Example: Saltwater.

Front

What is a heterogeneous mixture?

Back

A mixture that does not have a uniform composition and the different components can be seen. Example: Salad.

Front

What is the nucleus of an atom?

Back

The central part of an atom, containing protons and neutrons.

Front

What is an electron?

Back

A subatomic particle with a negative charge, found in the electron cloud surrounding the nucleus.