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chemistry

TermDefinition
ATOM smallest piece of matter that has the same properties an element it is in.
PROTON a positive subatomic particle in the atoms nucleus. is the identity of the element 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. tiney
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 2 atoms togeter
CHEMICAL BONDING The joining of atoms to form new substances.
IONIC BOND is formed when electrons are transferred from one atom to another.
ION changed particles or atom gained or lost electrons.
CRYSTAL LATTICE repeating 3 dimensional pattern that forms when ions bond.
COVENANT BOND the type of bond that forms when atoms share electrons instead of transferring them
METALLIC BOND a special bond between metal ions and electrons that swim around them.
DUCTILITY metals can be stretched into wires
CONDUCTIVITY metal can conduct or carry electricity through wires.metal can conduct or carry heat in order to cook food
ELECTRON DOT DIAGRAM an easy way to show valence electrons in an atom or chemical bond.
COMPOUND a set of elements that are chemically changed and bonded into new substances NaCI=salt
Chemical Formula A short way to use chemical symbols and numbers to represent a substance (h2o)
Chemical equation use symbols to show the relationship between the reactions and products c+02->c02
subscript (h2o) - small number to the right of the element that shows how many atoms there are in a element.
coefficient the large number that multiplies the atoms of elements.
Molecule 2 or more atoms joined together in a defint ratio keeps phys and chem properties
Diatomic molecule A molecule made of 2 atoms of the same element ex 2 oxgyn atoms
Reactant A subtance that forms as a result of a chemical reaction
Product The subtance that forms as a result of a chemical reaction
Laws of conservation of mass States that had matter is neither destryed 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.
dubble displacement reaction the 2 metal ions in 2 compounds switch place in a chemical reaction
indicator will change colors in the presence of an acid or abase
Created by: dirtbike125