| A | B |
|---|
| molecule | two or more atoms joined together by a bond |
| matter | makes up everything |
| physical change | matter properties change, but the type of matter stays the same |
| atom | has a nucleus surrounded by electrons |
| compound | two or more electrons bonded together |
| isotope | An atom of the same element, but with a different number of neutrons |
| elements | these make up the periodic table |
| phase change | when matter goes from a liquid form to a gas form |
| ion | an atom that has lost or gained electrons |
| plasma | the phase change after gas |
| electron cloud | where electrons are found |
| chemical change | when matter changes into a different type of matter |
