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 identify of the element and atomic number. |
Neutron | A neutral subatomic particle in the atom's nucleus...has no change and most of the mass. |
Element | The simplest form 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. |
Valance Electrom | The electron in the outer level of an atom that causes atoms to bond together |
Chemicals Bond | An interaction that holds 2 atoms together. |
Chemical Bonding | The joining of atom to form new substances. |
Ionic Bond | Is formed when electron are transformed from one atom to another atom. |
Ionic | Changed particle or atom that gained or lost electrons. |
Crystal Lattice | Repeating, 3 dimensional pattern that forms when Ions bonds. |
Covalent Bond | The type of bond that form when atoms shre electrons instead of transferring them. |
Metallic Bond | A special bond between mental Ions and the electrons that swim around them. |
malleability | Mental can be stretched and drawn into wires |
Conductivity | mental can conduct or carry electricity through wires. Mental can conduct or carry heat in order to cook food. |
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 NaCl= salt. |
Chemical Formula. | A short and way to use chemical symbols and numbers to resent a substance. |
Chemical Equation. | Use symbols to show the relationship between reactants and the products. |
Subscript | Small number to the right of the element that shows how many atoms there are of the element. |
Cofficient | The large number that multiplies atoms of element. |
Reactant | A substance or molecule that starts a chemical reaction. |
Product | The substance that form as a result of a chemical reaction. |
Law of Conservation of Mass | State that matter is neither created nor destroyed in a chemical reaction. |
Synthesis Reaction | When two or more substances Combine to create one new compound. |
Decomposition Reaction. | A reaction where a single compound breaks down to from 2 simper subtances |
Single - Displacement Reaction. | One element replaces another element in compound leaving a new compound and 1 element. |
Double Displacement Reaction. | the 2 metal ions 2 compound switch places in a chemical reaction. |
Indicator. | will changes colors in the presence of an acid or a base. |