click below
click below
Normal Size Small Size show me how
Chemistry
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 atoms nucleus. |
Neutron | A neutral subatomic particle in the atoms nucleus... has no charge and most of the mass. |
Electron | A negative subatomic particle spinning outside of an atom. Tiny! |
Element | The simplest forms of all 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 one 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 | Formed when electrons are transferred from one atom to another. |
Ion | Charged particle or atom that has 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. |
Malleability | Metals can be pounded into thin sheets. |
Ductility | Metals can be stretched and drawn into wires. |
Conductivity | Electrical 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 valence electrons in an atom or chemical bond. |
Compound | A set of elements that are chemically bonded and changed into new substances NaCl=Salt |
Chemical Formula | A short hand way to use chemical symbols and numbers to represent a substance. |
Chemical Equation | Uses symbols to show the relationship between the reactants and the products. C+O2 -> CO2. |
Synthesis Reaction | When two or more substances combine to create one new compound |
Decomposition Reaction | A reaction where a single compound breaks down to form two simpler substances |
Single Displacement Reaction | One element replaces another ion compound leaving a new compound and 1 element. |
Double Displacement Reaction | The 2 metal ions in 2 compounds switch in a chemical reaction. |