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9 Cards in this Set

  • Front
  • Back
atom
smallest particle of a element
electron
a negatively charged particle that is found outside the nucleus of an atom
nucleus
the center of an atom contains protons and neutrons
protons
a postivily charged particle that is part of an atoms nucleus
energy level
a region of an atom in which electrons of the same energy are likely to be found
nuetron
small particle in a nucleus of the atom with no electrical
atomic number
the number of protons in the nucleus of an atom
isotope
an atom with the same number of protons and a different number of nuetrons of other atoms of the same element
mass number
the sum of protons and nuetrons in the nucleus of an atom