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Chemistry
Vocabulary
| Term | Definition |
|---|---|
| Atom | Smallest piece of matter that has the same properties of the element it is in. |
| Proton | A positive subatomic particle in the atom's nucleus.Is the identity of the element and atomic |
| Neutron | A neutral subatomic particle in the atom's nucleus has no charge and most of the mass |
| Electron | A negative subatomic particle spinning outside the nucleus of an atom. Tiny! |
| Element | The simplest forms of matter that contain only one type of atom |
| Periodic Table of Elements | A chart that organizes all the elements by atomic number and properties |
| Valence Electron | The electron on the outer level of an atom that causes atoms to bond together |
| Chemical Bond | An interaction that hold two atoms together |
| Electron Dot Diagram | An easy way to show the valence electrons in an atom or chemical bond |
| Compound | A set of elements that are chemically bonded & changed into new substances |
| Chemical Formula | A short hand way to use chemical symbols and numbers to represent a substance.(H2O) |
| Subscript | (H2O)- small number to the right of the element that shows how many atoms are in the element. |
| Coefficient | The large number that multiplies atoms of the element 2Cl + 3Na |
| Chemical Equation | Uses symbols to show the relationship between the reactants and the products.C + O2=CO2 |
| Reactant | A substance or molecule that starts a chemical reaction. |
| Product | The substance that forms as a result of a chemical reaction.La |
| Law of Conservation of Mass | States that matter is neither created nor destroyed in a chemical reaction. |
| Synthesis Reaction | When 2 or more substance combine to create one new compound |
| Decomposition Reaction | A reaction where a single compound braks down to form 2 simple substances |
| Single-Displacement Reaction | One element replaces another element in a compound leaving a new compound and 1 element |
| Double Displacement Reaction | The 2 metal ions in 2 compounds switch places in a chemical reaction |
| Indicator | Will changes in colorsin the presence of an acid or a base |
Created by:
_natalie5_
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