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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 |