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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. Is the identity of the element and atomic number. |
| 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 numbers 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 joinings of atoms to form new substances |
| Ionic Bond | Is formed when electrons are transferred from one atom to another |
| Ion | Charged particles or atoms that gained or lost electrons. |
| Crystal Lattice | Repeating, 3 dimentional 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 drown into wires |
| Conductivity | Metal can conduct or carry electricity and heat |
| 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 |
| 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 element |
| Molecule | 2 or more atoms joined in a definite ratio. Keeps phys. and chem. properties. |
| Diatomic Molecule | A molecule made up of 2 atoms of the same element. |
| Coefficient | The large number that multiplies atoms of the element 2c + 3na |
| Chemical Equation | uses symbols to show the relationship between the reactions and the products |
| Reactant | A substance or a molecule that starts a chemical reactions |
| 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. |
Created by:
fiferw
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