Elements, Compounds and mixtures

Front

What is a compound?

Back

A compound is a substance formed when two or more different atoms are chemically bonded together.

Front

What is the atomic mass of Neon?

Back

The atomic mass of Neon is 20.18.

Front

What is mass number?

Back

Mass number is the total number of protons and neutrons in an atom's nucleus.

Front

What are examples of mixtures?

Back

Examples of mixtures include milk and gasoline.

Front

How many neutrons are in a Gold atom?

Back

A Gold atom has 118 neutrons.

Front

What is an element?

Back

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

Front

What is a mixture?

Back

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

Front

What is the difference between a compound and a mixture?

Back

A compound is made of two or more elements chemically bonded, while a mixture is a physical combination of substances.

Front

What is the atomic number of an element?

Back

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

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout.