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Chem Terms
| Term | Definition |
|---|---|
| Cation | A positively charged ion |
| Anion | A negatively charged ion |
| Ionic bond | A complete transfer of valence electrons between atoms. Usually a metal and nonmetal |
| Molecular bond/covalent bond | Sharing of electron pairs betweens atoms Non-metal and non-metal Can be reduced down to a single molecule and be stable |
| Colloid | A suspension of particles in water that does not settle out over time |
| Spectroscopy | Interaction of light and matter |
| Fullerene | An allotrope of carbon that forms closed or partially closed meshes. Ie: buccyballs |
| Allotrope | Different physical forms in which an element can exist. Graphite/charcoal/diamond |
| Heterogeneous mixture | Mixture where different materials can be easily distinguished. Orange juice/blueberry muffin/opened soda |
| Homogeneous mixture | An evenly blended mixture/uniform composition Gasoline/unopened soda/water |
| Tyndall effect | Scattering of light by colloidal particles |
| Mass number | Number of protons and neutrons in an isotope |
| Groups | Vertical columns on periodic table |
| Periods | Horizontal rows of elements |
| Polyatomic ion | |
| Positively or negatively charged group of covalent bonded particles | |
| Ion | Atom or molecule with a net electric charge due to gaining or losing electrons |
| Etchant |