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chemistry

TermDefinition
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 atoms nucleus has no charge and most of the mass
electron A negative subatomic particle spinning outside the nucleus of an atom
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 iteration 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 atom
Ion charged particle or atom that gained or lost electrons
Crystal Lattice Repeating 3 dimensional pattern that forms ions bond
Covalent bond The type of bond that forms when atoms save electrons instead of transferring them
Metallic bond A special bond between metal ions and the electrons that swim around them
Malleability metal can be pounded into sheets
Ductility Metals can be stretched and down into wires
Conductivity electrical: metal can conduct or carry electricity through wires. Thermal: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 bonding.
Compound A set of elements that are chemically banded a changed into new substances NaCI=SALT
chemical Formula A shorthand way to use chemical symbols and numbers to a represent a substance.
chemical equation Uses symbols to show the relationship between the reactants and the products
subscript small number to the right of the element that shows how many atoms there are of the element.
Coefficient The large number that multiplies atoms of the element
Diatomic molecule A molecule made of 2 atoms of the same element ex. 2 oxygen atoms
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.
double displacement reaction The 2 metals ions in 2 compounds switch places in a chemical reaction
indicator will changes colors in the presence of an acid or a base.
single displacement reeaction one element replaces another element in compound leaving a new compound and 1 element
synthesis Reaction when two or more substances combine to create one new compond
Created by: kahree boss