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NAME _______________________________________ PERIOD _______________ DATE ___________ CHAPTER 5 CHARACTERISTICS OF ELEMENTS Use a periodic table of the elements to help you answer the following questions. 1. a) How many protons does an atom of bromine have? _____________________ b) In which Group is bromine found? _____________________ c) What is the name of its chemical family? _____________________ d) How many valence electrons does it have? _____________________ e) Is it a metal, nonmetal, metalloid, or a gas? _____________________ f) How does its atomic radius compare to chlorine’s? _____________________ g) How does it atomic radius compare to arsenic’s? _____________________ h) What ion is it most likely to form in compounds? _____________________ How many protons does an atom of argon have? _____________________ b) In which Group is argon found? _____________________ c) What is the name of its chemical family? _____________________ d) How many valence electrons does it have? _____________________ e) Is it a metal, nonmetal, metalloid, or a gas? _____________________ f) How does its atomic radius compare to krypton’s? _____________________ g) How does its atomic radius compare with that of sulfur? _____________________ h) What ion is it most likely to form in compounds? _____________________ How many protons does an atom of potassium have? _____________________ b) In which Group is potassium found? _____________________ c) What is the name of its chemical family? _____________________ d) How many valence electrons does it have? _____________________ e) Is it a metal, nonmetal, metalloid, or a gas? _____________________ f) How does its atomic radius compare to sodium’s? _____________________ g) How does its atomic radius compare with that of selenium? _____________________ h) What ion is it most likely to form in compounds? _____________________ 2. a) 3. a)