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Atomic TheoryDS
Atomic Theory 1
Term | Definition |
---|---|
Atom | What all matter is made of |
Proton | Part of a nucleus that has a positive charge |
Neutron | Part of a nucleus that has no charge |
Element | When something is made out of only one atom |
Electron | Part of an atom involved in chemical reactions |
Malleable | Can be smashed without crumbling |
Luster | Shiny |
Ductile | Can be drawn in to a thin wire |
Corrosive | It can rust |
Density | The quantity of something per unit measure, especially per unit length, area, or volume |
Noble Gases | Any of the gaseous elements in group 18 |
Transitional Metals | Any metallic element in groups 3-12 |
Halogens | Any of the elements in group 17 |
Alkali Metals | Any of the elements in group 1 |
Alkaline Earth Metals | Any of the elements in group 2 |
Conservation of Mass | Matter is never created or destroyed it just reorganizes itself |
Compound | Made from 2 different atoms that chemically combine |
Molecule | Atoms combined |
Covalent Compound | 2 Non-Metals |
Ionic Compound | Metal and a Non-Metal |
Lewis Dot Structure | Picture that shows how elements form compounds using valence electrons |
Substance | Matter that has the same fixed composition and properties |
Heterogeneous Mixture | A type of mixture where the substances are not mixed evenly |
Homogeneous Mixture | Two or more substances mixed together evenly on a molecule level but are still not bonded together |
Solution | Another name for Homogenous |
Solute | Substance that seems to dissolves or seems to disappear |
Solvent | The substance that dissolves the solute |
Precipitate | The result of solutions mixing and creating a chemical change making a solid |
Physical Change | In which the form or appearance of matter changes but not the composition |
Vaporization | A liquid changes into a gas |
Condensation | When a gas changes into a liquid |
Sublimation | When a solid turns into a gas |
Deposition | when a gas turns into a solid |
Chemical Change | Substances are changed into different different substances |