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Atom A small particles that is the building block of matter
Compound A substance made of two or more elements that are chemically joined in a specific combination
Element A substance made of only one of atom
Heterogeneous Mixture A mixture in which the substances are not evenly mixed
Homogeneous Mixture A mixture in which two or more substances are evenly mixed,but not bonded together
Matter Anything that has and takes up space
Mixture Matter that vary in composistion
Molecules Two or more atoms that are held together by chemical bonds act as a unit
Substance Matter with a composition that is always the same
Atomic Number The number of protons in the nucleus of an atom of an element
Electrons A negatively charged particles that occupies the space in an atom outside the nucleus
Electron Cloud The region surrounding an atom's nucleus where one or more likely to be found
Ion An atom that has a charge because it has gained or lost electrons
Isotope One of two more of an element having the same number of proton's but a different number of neutons
Neutron An unchanged particles in the nucleus of an atom
Nucleus The region at the center of an atom that contains most of the mass of the atom
Proton A positively charged particles in the nucleus of an atom
Created by: buffijas7547