ATOMS And ELEMENTS ATOM VOCABULARY Use the TITLE PAGE diagram to draw an atom and label all parts shown. Matter – has mass and occupies space Substances – specific forms of matter Elements – simplest natural substances Particle – the smallest piece of a substance Atom – basic particle of an element. (Not in substances, substances made of) proton neutron electron nucleus electron cloud valence elctrons quantum theory The number of electrons and protons is always the _________. Most of the atoms volume and mass is the __________. Make a simple chart to show charges and location of all subatomic particles Atom location charge Job part eletron Proton neutron Electron cloud, Energy levels, Shells Valence electron Question: IF a substance is composed of all the same kind of atoms arranged in one particular way, how is this substance best classified. A. element B. compound C. mixture D. particle Elements – basic substances that cannot be broken into simpler substances. Draw the square of the Periodic Table for Oxygen 94 different elements occur naturally on earth. Bohr Model Combine to form substances. Every different combination of elements forms a different substances. Lewis Dot Structure Draw Hydrogen, Helium and Carbon