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Download ISOTOPES 3 SUBATOMIC PARTICLES Proton Located inside the
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ISOTOPES 3 SUBATOMIC PARTICLES o Proton Located inside the nucleus of an atom Specific to each element – change the # of protons and you change the type of element Positive charge Equal to the atomic number What is the atomic number of Lithium? How many protons does Lithium have? What is the atomic number of Chlorine? How many protons does Chlorine have? o Electron Located outside of the nucleus in an “electron cloud” Involved in chemical bonding Negative charge Equal to the # of protons in a neutral atom How many electrons does Potassium have? How many electrons does Nitrogen have? o Neutron Located inside the nucleus of an atom No charge # Neutrons = atomic mass – atomic number ISOTOPES o Isotopes are specific to each element. Isotopes of an element have a differing number of neutrons. o For example: Carbon has 3 different isotopes All atoms of carbon have 6 protons and a neutral atom will have 6 protons; however, Carbon-14 has 8 neutrons, Carbon-13 has 7 protons, and Carbon12 has 6 protons. This can be seen by using the formula for finding the # of neutrons. o Isotopes have a special notation: OR Carbon – 14 and Carbon - 12