answersLogoWhite

0

A molecule is the smallest particle of a substance (material or "matter") that retains its characteristic chemical identity - e.g. texture, colour-, physical properties - behavior as a solid, liquid, gas or other state at different temperatures and pressures - and its chemical properties - how it reacts with other substances.

A molecule may be as small as a single atom of an element - elements as found in the periodical table, e.g. helium atoms, gold atoms - or may be a structure of several atoms linked to one another. For example, a molecule of water is two hydrogen atoms connected to one oxygen atom.

Some molecules may be very large and geometrically complex, such as the molecules - like DNA, proteins and other organic compounds - that make up living systems.

User Avatar

Wiki User

16y ago

What else can I help you with?