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Vocab 2.1-2.2


atom a small partical that is the building block of matter
compound a substance made of two or more elelments that are chemically joined in specific combination
element a substance made of only one kind of atom
hetergeneouse a mic=xture in which the substance mad of only evenly mixed
homogeneous a mixture in which the substance are evenly mixed but not bonded together
matter anything that has mass and takes up space
mixture matter that can vary in composition
molecule two or more atoms that are held together by chemically bonded and acts as a unit
substance matter with a composition that is always the same
atom number the number of protons in the nucleus of an atom or element
electron a negtively charged partical that occupies the space in an atom outside the nucleus
electron cloud the region surronding an atom nucleus where one or more eletrons are mostly likely to be found
ion an atom that has a charge because it has a chance because it gained or lost eletrons
isotope one of two or more atoms of an element having the same number of protons but differnet number of neotrons
nucleus the region at the center of an atom that contains most mass of the atom
proton a positivly charge particle in the nucleus of an atom
Created by: hyattwil8174