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28 Cards in this Set

  • Front
  • Back
anion
a negatively charged atom
atom
the smallest particle of matter
atomic mass
the mass of an element. equal to the number of protons and neutrons
cation
a posotivly charged atom
coefficient
the number placed in fron of a chemical formula
combination reaction
when two small substances combine to make on larger one
combustion reaction
a reaction were a suvstance combines with oxygen to make Co2 and H2O
compound
two or more elements that are chemically charged
decompostion reaction
when on larger substance breaks down into two smaller substances
double replacement reactin
when two binary compounds break apart and switch posotive ions with eachother
electron
the negativly charged part of an atom
electron configureation
shows where elecrtons are found in atom
element
a pure substance made of one kind of atom
ion
a charged atom, negative or posotive
matter
what everything is made of. Anything that takes up space
metal
elements found on the left side of the periodic table. usually form postivie ions
neutral atom
when the number of protons equal the number of electons. total charge is zero
neutron
particle in the nucleaus of an atom that has no charge
noble gas
elements found in group 8 of the periodic table that do not react with anything
nonmetal
elements found on the right side of the periodic table. usually form negative ion
nucleus
the center of an atom that sontains protons and neutrons
orbitals
a space were electrons are found outside the nucleaus
products
what is made in a chemical reaction
proton
particle in the nucleaus of an atom that has a postive charge
reactants
the ingredients in a chemical reaction
single replacement reactin
when a binary compound breaks apart. half of it combines with a single element. the other half stays by itself
subatomic particles
the three particles that make an atom (proton, nuetron, and electon)
valence electrons
electrons on the outside of an atom that are involved in a chemical reaction