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anything that has mass and occupies space

Matter Anything that has mass and occupies space
Element A substance composed of a single kind of atom that cannot be broken down into other substances by chemical physical names
Periodic table An organized table of all the known Elements.
Atomic number The number of protons or Electron in an element
Atomic symbol an abbreviation for the element name.
Atomic mass the mass of protons or electrons in an element.
Compound A substance in which two or more elements are chemically joined in a set ratio.
Atom The smallest unit of an element that retains (or keeps)its properties of that element.
Nucleus The central core of an atom that contains the protons and neutron.
Proton small,positively charged particle in the nucleus of an atom.
Nuetron Small,uncharged particle in the nucleus of an atom.
Electron A tiny,negatively charged,high energy particle that moves in the space around the nucleus of an atom.
Electron shells fixed orbits or paths that electrons travel in around the nucleus.
Molecule two or more atoms that are bonded together .
Chemical bond The force that holds two or more atoms together.
Mixture Two or more substances that are mixed together but not chemically combined.
Created by: Daisy_happy03