Atom
A basic unit of matter
nucleus
the center on an atom that contains protons and neutron
electron
gives off a negative charge
localed in the outside of an atom
element
pure substance that consists entirely of one type of atom
isotope
one of several of a single element
compound
a substance formed by a combination of two or more elements
ion
atom that has a positive or negative charge
covalent bond
type of bond between atoms in which the electrons are shared
molecule
small unit of a compound that displays all the characteristics of that compound
hydrogen bond
a weak attraction between hydrogen atoms and other atom
cohesion
attraction between molecules of the same substance
adhesion
force of attraction between different kinds of molecules
mixture
material composed of two or more elements or compounds that are physically mixed together but not chemically combined
solution
type of mixture in which all the solvents are evenly distributed
solute
substance that gets dissolved
solvent
The substance that gets dissolved into
suspension
mixture of water and undissolved material
pH scale
scale with valued 0-14, used to measure, the composition of H+ ions in a solution, an pH 017 is acidic, an pH of 7 is neutral, an pH of 7-14 is basic
acid
compound that forms hydrogen ions in a solution, a solution with a base less than 7
base
compound that produces hydroxide atoms in a solution,solution with pH more than 7
buffer
compound that prevents sharp sudden changes in pH