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19 Cards in this Set

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  • Back
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ATOM
the smalest unit of an element that still keeps the propeties of the element.
smallest unit
MATTER
anything that has mass and occupies space.
has matter, takes up space
ELEMENTS
Basic materials of matter which have only one kind of matter and cannot be broken down into anything butitself.
cannot be broken down
ELEMENTS
Basic materials of matter which have only one kind of matter and cannot be broken down into anything butitself.
cannot be broken down
ELEMENTS
Basic materials of matter which have only one kind of matter and cannot be broken down into anything butitself.
cannot be broken down
PROTON
part of an atom found in the nucleus, and has a positive [+] electrical charge
postive electrical charge[+]
ELECTRON
part of an atom which has a negative [-] electrical charge and exists outside the nucleus in energy levels which we call the electron cloud.
negative electrical charge
NEUTRON
part of and atom which exists in the nucleus and has no charge [neutral]
neutral
NUCLEUS
part of the atom where protons and neutrons are stored.
center, protons and neutrons stored
ELECTRON CLOUD
The portion of an atom consisting of negative electricity surrounding the nucleus.
surrounds nucleus
ATOMIC NUMBER
the number of protons in an atom, elements on the periodic table are stored by the number of protons which is atomic number.
# of protons
MASS NUMBER
number of protons plus neutrons in the nucleus of an atom.
# of protons+ neutrons
MASS NUMBER
number of protons plus neutrons in the nucleus of an atom.
# of protons+ neutrons
PERIODIC TABLE
table on which elements are organized according to their atomic number.
table
ION
An atom that has aelectrical charge because it has lost or gained electrons.
lost of gained electrons
ISOTOPE
an atom of a particular kind which has a changed number of neutrons.
changed number
CHEMICAL COMPOUND
when atomes of different elements combine to form something new.
Ex: oxygen & hydrogen combine to form water.
MOLECULE
smallest unit of a compound.
smallest of COMPOUND
SOLUTION
a kind of mixture in which one kind of matter dissolves in another.
Ex: ice, tea, kool-aid,