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Chem Study Stack
| Question | Answer |
|---|---|
| Atom | smallest particle in which an element can be divided and still have the properties of that element |
| element | substance that cannot be broken down into simpler substances |
| nucleus | biology structure near the center of a cell that contains the cell's DNA |
| Electron Shell | in the electron cloud model of an atom, in the region around the nucleus where an electron may be found |
| proton | positively charged particle in the nucleus of an atom |
| neutron | electrically neutral particle that has the same mass as a proton and is found in the atom's nucleus |
| electron | negatively charged particle that exists in an electron cloud formation around the atom's nucleus |
| atomic number | number of protons in the nucleus of an atom of a given element |
| atomic mass | average mass of one atom of an element |
| valence electrons | electrons in the outer most energy level of an atom; in large part, they determine an element's chemical properties |
| beaker | holds liquids for ballpark estimates |
| apron | protects clothes |
| Density | Mass x Volume |
| safety goggles | protects your eyes |
| petri dish | growing and viewing microorganisms |
| balanced force | when two opposing forces are equal (no movement) |
| unbalanced force | when two opposing forces are not equal (there is movement) |
| Newton's 1st law of motion | 1: when object at rest stays at rest unless acted upon by an unbalanced force.an object in motion stays in motion unless acted upon an unbalanced force |
| Speed | Distance/Time |
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