Elements, Compounds, Atoms, and Molecules

Front

What is an atom?

Back

The smallest particle of any element that still has the properties of that 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 by the reaction of two or more different elements.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded.

Front

What is a mixture?

Back

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

Front

What is the chemical formula for carbon dioxide?

Back

CO2, which indicates one carbon atom and two oxygen atoms.

Front

What is a chemical bond?

Back

A force that holds atoms together in a molecule or compound.

Front

What is the periodic table?

Back

A tabular arrangement of elements organized by their atomic number, electron configuration, and recurring chemical properties.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, matter is neither created nor destroyed.