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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 the atomic number.
Neutron A neutral subatomic particle in the atoms 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 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 from one atom to another
Ion Charged particle or atoms that gained or lost electrons
Chrystal 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.
Metallic Bond A special bond between metal ions and the electrons that swim around them
Ductility Metals can be stretched and drown into wires.
Mallebility Metals can be pounded into thin sheets.
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
Conductivity Metals can conduct electricity and heat.
Chemical Formula A shorthand way to use chemical symbols and numbers to represent a substance. (H2O)
Chemical Equation Uses symbols to show the relationship between the reactants and the products C+O2 -> CO2
Subscript (H2O)- small number to the right of the elements that shows how many atoms there are of the element.
Coefficient The large number that multiplies atoms of the element. 2Cl + 3Na
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 Reaction When two or more substances combine to create one new compound
Decomposition Reaction A reaction where a single compound breaks down to form 2 simpler substances
Single Displacement Reaction The 2 metal ions in 2 compounds switch places in a chemical reaction
Indicator Will change colors in the presence of an acid or a base
Created by: caylawyatt