the atom. electron clouds major energy levelmaximum number of electrons k2 electrons l8 electrons...
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The atom
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Electron Clouds
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Major energy level Maximum number of electronsK 2 electronsL 8 electronsM 18 electronsN 32 electronsO 32 electronsP 18 electronsQ 2 electrons
Atomic Number
• Atomic Number Number of Protons in the Nucleus
• Atomic Mass Average weight of an element’s atom
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Periodic Table
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Hydrogen
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CarbonQuickTime™ and a
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Oxygen
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Water Molecule
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Carbon Dioxide Molecule
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Sodium atom
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Chloride atom
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Sodium Chloride molecule
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Sodium Chloride in Water
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IsotopesAtoms of the same element that have different
numbers of neutrons in the nucleus
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Isotopes of Carbon
• Carbon 12 6 protons, 6 neutrons, 6 electrons
• Carbon 13 6 protons, 7 neutrons, 6 electrons
• Carbon 14 6 protons, 8 neutrons, 6 electrons Radioactive