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Periodic Table Trends

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  • Which of the following lists of properties best describes nonmetals?
    brittle, shiny, conductor
    Brittle, dull, insulator
    malleable, 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 protons in the element
    the number of valence Electrons
    The atomic mass of the element
    The number of neutrons of the element
  • What period is this element in?
    Period 4
  • Which of the following is true for elements listed in the same column of the periodic table?
    atoms are the same size
    mass of their atoms are similar
    have the same number of protons
    they have similar chemical properties
  • Why are groups 1 and 7 the most reactive?
    They are one valence electron away from stability
  • Where are Valence Electrons found?
    The outermost shell
  • What does the atomic number tell you?
    The number of protons (and electrons if the element is neutral)
  • What are 3 properties you could use to describe metals?
    Luster (shiny or metallic), conductors, solids, malleable, ductile
  • Valence Electrons determie the __________________ .
    Chemical Properties or Reactivity of the atom.
  • What common property do sulfur and oxygen have in common?
    Both have 6 valence electrons
    Both are metals
    Both are gases
    Sulfur and oxygen do not have a common property
  • 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 must be true of the element represented by the "X"?
    It will have 6 total electrons.
    It will have a mass greater than 30.
    It will have chemical properties similar to C.
    It will have 28 protons
  • Based on the periodic table what do you know about these elements?
    They all have the number of energy levels/shells.
  • What color is the blue section of the periodic table.
    The Metals
  • What is the family group # and period for this element?
    group 5. period 2
  • Based on the Periodic Table, which of the following elements has physical and chemical properties most like potassium?
    Bromine
    Sodium
    Neon
    Calcium
  • When metals, nonmetals, and metalloids are compared according to luster, which is the best description of the appearance of metalloids?
    Shiny
    Dull
    Powdery
    Either Shiny or Dull
  • What 2 groups are the most reactive?
    Groups 1 and 17 (7A)
  • Why do noble gases have inactivity (stability)?
    these atoms have full outershells.
  • A student hypothesizes that sodium (Na) has different chemical properties than magnesium (Mg). Why would they think that?
    Sodium and magnesium have different numbers of valence electrons.  They are in different groups
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