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Atom smallest piece of matter that has the same properties as the element it is in
Proton a positive subatomic particle in the atoms nucleus, its 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 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 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 two atoms together
chemical bonding the joining of atoms to form a new substance
ionic bond is formed when electrons are transferred from one atom to another
ion charged particle or atoms 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
malleability metals can be pounded into sheets
ductility metals can be stretched and drawn into wires
conductivity metal can conduct 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 NaCl = salt
Chemical Formula a short hand 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 in one element
Coefficient The large number that multiplies atoms of the element 2cl+3na
Chemical Equation uses symbols to show the relationship between reactants and the product
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 one element replaces another element in a 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 change colors in the presence of an acid or a base
Created by: itsmeleah117



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