Element - A pure substance composed, or made of, one type of atom. It cannot be broken down into any other substance. There are 118 identified ones., Atom - The basic unit of an element. They are super tiny and can be combined to form other substances. They are made of protons, electrons, and neutrons., Molecule - Atoms bonded or chemically linked together. , Electron - Particles that are negatively charged. (-), Proton - Particles that are positively charged. (+), Neutron - Particles that have no charge. (nc), Rutherford's Experiment - A 1908 experiment that proved what the structure of an atom is and that atoms are mostly empty space., Nucleus - The center of an atom., Periodic Table - Each symbol is an abbreviation of an element. An organized arrangement of the chemical elements, in order of their atomic number number of protons, electron configurations, and their chemical properties., What is the difference between elements? - The number of electrons, protons and neutrons in each element., Atomic Number - It has the same number of protons and electrons., Sodium Chloride - It is needed to live and it's editable in the form of table salt., Chemistry - The main study of science. This profession can create a molecule that can help stop growth of cancer., Biochemistry - The study of science that study living things (bio) specific enzymes and proteins at the molecular level., How many protons and electrons does an element have? - The same number (top left number on the periodic element table).,

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