The Kinetic Theory of Matter

Practice Test
  1.When an iron atom loses all its 4s electrons and one 3d electron, its oxidation number is ______.  
  a.   11+  
  b.   5+  
  c.   1+  
  d.   3+  
  2.The arrangement of electron pairs around each of the two carbon atoms in the ethene molecule, C2H4, is best described as _________________.  
  a.   tetrahedral  
  b.   linear  
  c.   square planar  
  d.   trigonal planar  
  3.Chemical bonding results in ________________.  
  a.   longer bond lengths  
  b.   decreased stability  
  c.   lower density  
  d.   increased stability  
  4.The elements in Groups 1, 2, and 13-17 are called the _____________.  
  a.   transition elements  
  b.   noble gases  
  c.   main group elements  
  d.   alkali metals  
  5.At the same temperature, the average speed of hydrogen molecules is _____________ that of chlorine molecules.  
  a.   about the same as  
  b.   slightly less than  
  c.   much less than  
  d.   much greater than  
  6.Sodium and chlorine react to produce ______________.  
  a.   sodium chlorine  
  b.   gaseous chlorine  
  c.   sodium chloride  
  d.   liquid sodium  
  7.The Lewis electron dot structure for this element contains seven dots.  
  a.   zinc  
  b.   iodine  
  c.   manganese  
  d.   francium  

  a.   green  
  b.   red  
  c.   violet  
  d.   blue  
  9.When materials called _____________ melt, they lose their rigid organization in only one or two dimensions.  
  a.   liquid crystals  
  b.   solid crystals.  
  c.   liquids  
  d.   solids  
  10.This transition element is used in many barometers and thermometers.  
  a.   titanium  
  b.   copper  
  c.   mercury  
  d.   iron  
  11.The two rows beneath the main body of the periodic table contain the _________________.  
  a.   inner transition elements  
  b.   noble gases  
  c.   alkali metals  
  d.   halogens  
  12.This scientist arranged some elements in triads based on their atomic masses and other properties.  
  a.   Dobereiner  
  b.   Newlands  
  c.   Einstein  
  d.   Mendeleev  
  13. This useful transition element is the major component in steel.  
  a.   iron  
  b.   chromium  
  c.   nickel  
  d.   tungsten  
  14.The motions of particles cause them to spread out in a process known as ____________.  
  a.   condensation  
  b.   aeration  
  c.   evaporation  
  d.   diffusion  
  15.These two elements are liquids at room temperature and pressure.  
  a.   lithium and cesium  
  b.   silver and nitrogen  
  c.   mercury and bromine  
  d.   mercury and oxygen  
  16.What electron configuration describes the outermost energy level of a molybdenum atom?  
  a.   6p6  
  b.   5s2  
  c.   5d4  
  d.   4d4  
  17.The constant, random motion of tiny chunks of matter is called _________________.  
  a.   linear motion  
  b.   parabolic trajectory  
  c.   kinetic motion  
  d.   Brownian motion  
  18.The type of analysis based on the movements of a stationary phase and a mobile phase is called _____________.  
  a.   phase movement  
  b.   chromatography  
  c.   photography  
  d.   titration  
  19.This Group 14 element is used in making ceramics, glass, and cement.  
  a.   lead  
  b.   tin  
  c.   carbon  
  d.   silicon  
  20.In general, _________ are malleable and ductile.  
  a.   metalloids  
  b.   nonmetals  
  c.   metals  
  d.   noble gases  

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