Atoms, Elements, Compounds

Front

What is an element?

Back

A pure substance made of only one kind of atom that cannot be broken down into simpler substances.

Front

What surrounds the atomic nucleus?

Back

The electron cloud, which is a region of negative charge.

Front

What does the atomic number represent?

Back

The total number of protons in the nucleus of an atom.

Front

What is a compound?

Back

A substance formed by combining two or more different atoms together.

Front

What is the atomic number of an element?

Back

The number that represents the total number of protons in the nucleus.

Front

What is an atom?

Back

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

Front

What are neutrons?

Back

Neutral particles found in the nucleus of an atom that do not have an electric charge.

Front

What are protons?

Back

Positively charged particles found in the nucleus of an atom.

Front

What is a molecule?

Back

A group of two or more atoms bonded together, which can be of the same or different elements.

Front

What is the difference between an element and a compound?

Back

An element is made of one type of atom, while a compound is made of two or more different types of atoms.