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13 Cards in this Set

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  • Back
a substance that is formed by the chemical combination of two or more elements
COMPOUND
the basic building blocks of all matter
ELEMENT
a way to write a compound’s name using symbols
CHEMICAL FORMULA
the smallest unit of an element that retains the properties of the element
ATOM
Located inside the nucleus of the atom
Carry 1 positive electrical charge
PROTON
Located inside the nucleus of the atom
Carry no electrical charge
NEUTRON
Located in the space outside the nucleus
Carry 1 unit of negative electrical charge
ELECTRON
an atoms tiny, dense center where most of its mass is
NUCLEUS
a table of all known elements arranged by repeating cycles of similar properties
PERIODIC TABLE
Number of known elements
112
a particle that contains more than one atom joined together
MOLECULE
Molecules of _________ only contain one kind of atom
ELEMENTS
Molecules of ________ contain different kinds of atoms that are joined together
COMPOUNDS