A pure substance is a form of matter that has a constant composition and distinct chemical properties. It can be an element or a compound, and it cannot be separated into other substances by physical means.

Pure Substance

pure substance

form of matter

constant composition

distinct chemical properties

An element is a fundamental substance that cannot be broken down into simpler substances by chemical means and is defined by its number of protons in the atomic nucleus. Elements are the building blocks of matter, each with unique properties that determine their role in chemical reactions and the formation of compounds.

element

A compound is a substance formed when two or more chemical elements are chemically bonded together, resulting in a molecule with unique properties distinct from its constituent elements. Compounds can be broken down into simpler substances through chemical reactions, and they are classified based on the types of bonds holding the atoms together, such as ionic, covalent, or metallic bonds.

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