Elements and Compounds

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include hydrogen, oxygen, and carbon.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together. Examples include water (H2O) and carbon dioxide (CO2).

Front

What is the chemical symbol for oxygen?

Back

O

Front

What is the chemical symbol for sodium?

Back

Na

Front

What is the difference between an element and a compound?

Back

An element is a single type of atom, while a compound consists of two or more different types of atoms chemically bonded together.

Front

Can compounds be broken down into simpler substances?

Back

Yes, compounds can be broken down into their constituent elements through chemical reactions.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded. Examples include air and salad.

Front

What is the chemical symbol for magnesium?

Back

Mg

Front

What is a molecule?

Back

A molecule is the smallest unit of a chemical compound that retains its chemical properties, made up of two or more atoms bonded together.

Front

What is the Periodic Table of Elements?

Back

The Periodic Table is a tabular arrangement of all known chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.