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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 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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