The+Elements+-+glossary+of+terms

=The Elements/ glossary of terms=
 * **alchemy**: a science that attempts to change one element into another.
 * **alloy**: a substance that is a compound of two or more metals.
 * **amalgam**: any metallic alloy which has mercury in it.
 * **atom**: any one of the smallest particles of an element, that combine with similar particles of other elements to form compounds.
 * **chemistry**: the science of the properties, composition, and transformation of substances.
 * **compound**: a mixture of two or more elements or ingredients.
 * **condensation**: changing a gas to a liquid.
 * **conductive**: able to pass heat or electricity from one side to the other.
 * **corrosion**: the act of eating away at gradually, as by rust or chemical action.
 * **covalent bond**: a bond between atoms formed by sharing of **electrons**.
 * **ductile**: capable of being drawn out into threads, as some metals.
 * **electron**: a negatively charged particle that is a component of all atoms.
 * **element**: a natural substance which cannot be broken down any further.
 * **emulsion**: a liquid, as milk, in which minute particles remain in suspension.
 * **evaporation**: the opposite of condensation, in which a liquid becomes a gas.
 * **fusibility**: the ability to join separate parts together as one.
 * **gas**: a fluid and elastic form of matter tending to expand indefinitely.
 * **halogens**: A group of elements, all of which are very reactive.
 * **ion**: An ion is an electrically charged particle. Some atoms can bond with each other ionically to form **molecules**. Certain **atoms** are allowed to have certain ionic charges so that they may bond with other atoms having opposite ionic charges.
 * **ionic bond**: a bond between **ions**.
 * **liquid**: a compressed mass of particles that flow freely.
 * **luster**: how a material shines.
 * **malleable**: capable of being hammered or shaped without breaking.
 * **matter**: any particular substance.
 * **melting**: to change from a solid to a liquid state, usually by heat.
 * **metal**: one of the elements with the characteristics of **luster**, **ductility**, **malleability**, **fusibility**, and **conductivity** of heat and electricity.
 * **mixture**: when two or more **elements** are put together but still retain their own properties.
 * **molecule**: two or more atoms bonded together.
 * **neutron**: an uncharged particle having nearly the mass of a **proton**.
 * **nucleus**: the center of an **atom**.
 * **ore**: a mineral in its natural state.
 * **oxidation**: the operation of converting into an oxide, such as rust (iron-oxide).
 * **particle**: a very tiny piece, bit.
 * **proton**: a positively charged particle in the nucleus of an atom.
 * **radioactive**: When an atom has to many protons it cannot hold themselves together anymore, when this happens protons emit radiation until they are balanced.
 * **solid**: a hard object that is not a liquid or a gas.
 * **solution**: a mixture of solids, liquids, or gases that joins together evenly.
 * **sublimation**: to change from a **solid** directly to a **gas**.