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Atom building blocks of matter
proton positive charge found in nucleus
neutron neutral charge
valence electrons on the last shell of an atom
atomic mass number of protons and electrons
atomic number number of protons and electrons
nucleus center of atom holds protons and electrons
Bohr diagram (()) shows all electrons
quark makes up protons and electrons held together by gluons
chemical symbol represents the chemical
energy level the different rings.
electron negative charge
Lewis structure shows valence electrons
isotopes c12 c13 c14
lepton makes up electrons
periodic table the system used to show and order elements
period the rows of the periodic table
group/family the columns of the periodic table
metals good conductors of heat and electricity, are malleable and ductile and even shiny
nonmetals do not conduct heat or electricity
metalloids have some properties of metals and nonmetals called a semiconductor
Compound two or more substances chemically combined
Mixture two or more substances not combined chemically
Matter anything with mass or volume
chemical property describes how a substance will react to another substance
physical property used to describe the physical characteristics of matter such as shape or size
physical change a change in size shape or state
chemical change (chemical reaction) creates a new substance
monomers molecules that are linked together to make a plymer
polymer made of monomers such as DNA
petrochemicals chemicals made of petroleum
Ion atom that has lost or gained electrons
Ionic bond the transfer of bonding metals or nonmetals
covalent bond bond between two non metals that involves sharing
Chemical equation what represents a chemical reaction
Reactants substance that starts a reaction
product 2MgO
oxidation number hypothetical numbers assigned to an individual atom or ion
conservation of mass states that for any system closed to all transfers of matter and energy (both of which have mass), the mass of the system must remain constant
chemical formula The final product of a chemical reaction
Created by: 2019chenderson