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Periodic Table Trends

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  • What property do sulfur and oxygen have in common?
    Both are gases
    Sulfur and oxygen do not have any properties in common
    Both are metals
    Both have 6 valence electrons
  • When metals, nonmetals, and metalloids are compared according to luster, which is the best description of the appearance of metalloids?
    Powdery
    Shiny
    Either Shiny or Dull
    Dull
  • Is the blue section of the periodic table showing metals, nonmetals or metalloids?
    Metals
  • Which of the following is true for elements listed in the same column of the periodic table?
    they have the same atomic mass
    they have similar chemical properties
    they have the same number of protons
    they are identical
  • A student states that sodium (Na) has different chemical properties than magnesium (Mg).  Do you agree? Justify your answer.
    Sodium and magnesium have different numbers of valence electrons.
  • What must be true of the element represented by the "X"?
    It will have a mass greater than 30.
    It will have 28 protons.
    It will have 6 total electrons.
    It will have chemical properties similar to Carbon.
  • Valence Electrons determine the __________________ .
    Chemical Properties or Reactivity of the atom.
  • Why is the group alkali metals the most reactive metals?
    Alkali metals only have one valence electron.
  • Which of the following lists of properties best describes nonmetals?
    Malleable, shiny, conductor
    Brittle, dull, insulator
    Brittle, shiny, conductor
    Malleable, dull, insulator
  • What characteristic of an element is the best indicator for determining what other elements it will react with?
    the number of neutrons of the element
    the atomic mass of the element
    the number of valence Electrons
  • Why are noble gases nonreactive/ stable/ or least reactive?
    these atoms have full outershells.
  • Based on the Periodic Table, which of the following elements has physical and chemical properties most like potassium?
    Bromine
    Calcium
    Neon
    Sodium
  • A researcher wants to experiment with an element that reacts like sulfur (S) but has a greater atomic mass. Which elements should the researcher select for the experiment?
    Selenium, Tellurium, Polonium
  • What is the group # and period # for this element?
    group 5. period 2
  • What period is this element in?
    Period 4
  • Why is this family, the Halogens, the most reactive NONMETAL family?
    They are 1 electron away from having a full outer shell.
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