The same as the number of protons in an element

Vaporization that occurs below the surface of a liquid

Temperature at which a liquid boils

atoms are joined together by a chemical reaction

Characteristic of matter that allows it to change into something new

Pure substance made of more than one kind of element

transfer of heat or energy by contact

transfer of heat through a medium

How much matter is in a certain amount of space

The area in an atom that contains the electrons

The negatively charged particles in an atom

Substance made of only one kind of atom

Vaporization that occurs at the surface of a liquid

Abbreviation for a compound

chemical property that tells if something will burn

Temperature at which a substance changes from liquid to solid

State of matter where the substance takes up all the space in its container

Energy that moves from warmer substances to cooler ones until both are the same temperature

The energy of motion

Matter is neither created nor destroyed, only changes form.

State of matter where particles slip and slide around each other

The amount of matter in an object

Anything that has mass and takes up space

type of element that is shiny, strong, malleable and a good conductor

type of element that has properties of both metals and nonmetals

Two substances combine, but no new substance forms

Two or more atoms bonded together

The particles in an atom that have no charge

type of element that is dull, brittle and a poor conductor

The center part of an atom

A chart with information about all the elements