A table showing all the known chemical elements. It is structured around periodic trends, and arranged according to atomic number, electron configuration, and chemical properties.

Modern 18-Column Table:

Periodic Table of Elements

The smallest piece of a chemical element or ordinary matter

Atom

A substance in its simplest form, meaning that it cannot be broken down further via chemical processes. All matter is composed of these elements. 

Calvin College

A science that covers the properties, composition, and structure of elements and compounds. It addresses questions of how these substances change and the energy transfer involved in transformations.

Chemistry 

Britannica

- Analytical Chemistry 
- Applied Chemistry (Chemical Engineering)
- Biochemistry
- Electrochemistry
- Geochemistry
- Inorganic Chemistry
- Organic Chemistry
- Physical Chemistry

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