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

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What are the three main parts of an atom?

Back

Proton, Neutron, Electron.

Front

What is a proton?

Back

A proton is a positively charged particle found in the nucleus of an atom.

Front

What is a neutron?

Back

A neutron is a neutral particle found in the nucleus of an atom.

Front

What is an electron?

Back

An electron is a negatively charged particle that orbits the nucleus of an atom.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is a compound?

Back

A compound is a substance made of two or more elements that are chemically combined.

Front

What is a mixture?

Back

A mixture is a substance made of two or more elements or compounds that are physically combined.

Front

What is the periodic table?

Back

The periodic table is a chart that organizes all known elements by their atomic number and properties.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.