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NAME________________ Chapter 4: Structure of an Atom Directions: Analyze the following atoms using a periodic table of elements. 1) Hydrogen (H) 2) Carbon (C) Atomic number ___________ Atomic number ___________ Chemical Symbol ___________ Chemical Symbol ___________ Atomic Mass ___________ Atomic Mass ___________ # of protons ___________ # of protons ___________ # of electrons ___________ # of electrons ___________ # of neutrons ___________ # of neutrons ___________ 3) Oxygen (O) 4) Gold (Au) Atomic number ___________ Atomic number ___________ Chemical Symbol ___________ Chemical Symbol ___________ Atomic Mass ___________ Atomic Mass ___________ # of protons ___________ # of protons ___________ # of electrons ___________ # of electrons ___________ # of neutrons ___________ # of neutrons ___________ 5) Silver (Ag) 6) Sodium (Na) Atomic number ___________ Atomic number ___________ Chemical Symbol ___________ Chemical Symbol ___________ Atomic Mass ___________ Atomic Mass ___________ # of protons ___________ # of protons ___________ # of electrons ___________ # of electrons ___________ # of neutrons ___________ # of neutrons _________ NAME________________ 7) Bromine (Br) 8) Chlorine (Cl) Atomic number ___________ Atomic number ___________ Chemical Symbol ___________ Chemical Symbol ___________ Atomic Mass ___________ Atomic Mass ___________ # of protons ___________ # of protons ___________ # of electrons ___________ # of electrons ___________ # of neutrons ___________ # of neutrons ___________ 9) Nickel (Ni) 10) Zinc (Zn) Atomic number ___________ Atomic number ___________ Chemical Symbol ___________ Chemical Symbol ___________ Atomic Mass ___________ Atomic Mass ___________ # of protons ___________ # of protons ___________ # of electrons ___________ # of electrons ___________ # of neutrons ___________ # of neutrons ___________ 11) Arsenic (As) Atomic number ___________ Atomic number ___________ Chemical Symbol ___________ Chemical Symbol ___________ Atomic Mass ___________ Atomic Mass ___________ # of protons ___________ # of protons ___________ # of electrons ___________ # of electrons ___________ # of neutrons ___________ # of neutrons ___________ 12) Xenon (Xe) NAME________________
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