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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 and subatomic particle in the atoms nucleus. Is the identity of the element and atomic number. |
| Neutron | A neutral subatomic particle in the atoms nucleus.... has no charge and most of the mass. |
| Electron | A neutral subatomic particle spinning outside the nucleus of an atom. Tiny! |
| Element | The simplest forms of matter that contains 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 in the outer level of an atom that causes atoms to bond together. |
| Chemical Bond | An interaction that holds 2 atoms together. |
| Chemical Bonding | The joining of atoms to form new substances. |
| Ionic Bond | is formed when electrons are transferred to another atom. |
| Ion | Charged particle or atom that gained or lost electrons. |
| Crystal Lattice | Repeating, 3 dimensional pattern that forms when Ions bond. |
| Covalent Bond | The type of bond that forms when atoms share electrons instead of transferring them. |
| Metallic Bond | A special bond between metal ions and the electrons that swim around them. |
| Ductility | Metals can be stretched and drawn into wires. |
| Malleability | Metals can be pounded into thin sheets. |
| Conductivity | Metal can conduct or carry electricity through wires. |
| Thermal Conductivity | Metal can conduct or carry heat in order to cook food. |
| Electron Dot Diagram | An easy way to show the valance electrons in an atom or chemical bond. |
| Compound | A set of electrons that are chemically bonded and changed into new substances. Naci=Salt. |
| Chemical Formula | A shorthand way to use chemical symbols and numbers to represent a substance. |
| Subscript | Small number to the right of the element that shows how many atoms there are of the elements. |
| Coefficient | The large number that multiplies atoms of the element. |
| Chemical Equation | Uses symbols to show the realationship between the reactants and the products |
| Molecule | 2 or more atoms joined in a definite ratio. Keeps phys. & chem. properties. |
| Diatomic Molecule | A molecule made of 2 atoms of the same element. |
| Reactant | A substance or molecule that starts a chemical reaction. |
| Product | The substance that forms as a result of a chemical reaction. |
| Law of Conservation of Mass | States that matter is neither created nor destroyed in a chemical reaction. |
| Synthesis | When two or more substances combine to create one new compound. |
| Synthesis Reaction | When two or more substances combine to create a new compound. |
| Decomposition Reaction | A reaction where a single compound breaks down to form 2 simpler substances. |
| Single-Displacement Reaction | One element places another element in 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 colors in the presence of an acid or base change. |
Created by:
Mahki
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