The Kinetic Theory of Matter

Practice Test
  1.The constant, random motion of tiny chunks of matter is called _________________.  
  a.   kinetic motion  
  b.   Brownian motion  
  c.   linear motion  
  d.   parabolic trajectory  
  2.The elements in Groups 1, 2, and 13-17 are called the _____________.  
  a.   transition elements  
  b.   alkali metals  
  c.   noble gases  
  d.   main group elements  
  3.Atoms that transfer electrons form __________ bonds.  
  a.   dative  
  b.   covalent  
  c.   coordinate  
  d.   ionic  
  4. This useful transition element is the major component in steel.  
  a.   tungsten  
  b.   chromium  
  c.   iron  
  d.   nickel  
  5.Many towns and cities add these compounds to their water supplies.  
  a.   sulfides  
  b.   carbides  
  c.   fluorides  
  d.   hydrides  
  6.In general, electronegativity ___________ atomic number within a period.  
  a.   increases with  
  b.   remains constant with  
  c.   decreases with  
  d.   is inversely proportional to  
  7.Why was Mendeleev's periodic table widely accepted?  
  a.   He was the first to notice a pattern of similar properties among elements.  
  b.   He organized the first 14 known elements.  
  c.   He predicted the existence and properties of undiscovered elements.  
  d.   His periodic table listed all of the elements in the correct order.  
  8.Plutonium and americium are ______________.  
  a.   Noble gases  
  b.   synthetic elements  
  c.   metalloids  
  d.   nonmetals  
  9.___________ sharing of electrons results in ionic bonding.  
  a.   Highly unequal  
  b.   Electronegative  
  c.   Equal  
  d.   Slightly unequal  
  10.Which element is NOT suitable to dope silicon to produce an n-type semiconductor?  
  a.   phosphorus  
  b.   antimony  
  c.   arsenic  
  d.   carbon  
  11.Mendeleev predicted the properties of these two elements, which were unknown at the time.  
  a.   carbon and silicon  
  b.   boron and arsenic  
  c.   silicon and aluminum  
  d.   gallium and germanium  
  12.The light emitted by the gas in a neon sign is _________________.  
  a.   an incandescent light  
  b.   an emission spectrum  
  c.   an electron  
  d.   a filament  
  13.According to the kinetic-molecular theory, which of these describes a gas?  
  a.   large particles in constant, random motion  
  b.   small particles in constant, random motion  
  c.   large particles far apart in uniform motion  
  d.   small particles far apart in uniform motion  
  14.The pressure of a substance in equilibrium with its liquid is called its _________________.  
  a.   rate  
  b.   freezing point  
  c.   vapor pressure  
  d.   temperature  
  15.What element has the electron configuration [Ar]4s23d3?  
  a.   nitrogen  
  b.   vanadium  
  c.   scandium  
  d.   arsenic  
  16.Many transition elements have multiple positive oxidation states because their atoms can lose some of their _______________.  
  a.   s electrons  
  b.   nuclear protons  
  c.   d electrons  
  d.   p electrons  
  17.The CO molecule is _____________________.  
  a.   trigonal planar and polar  
  b.   linear and nonpolar  
  c.   tetrahedral and nonpolar  
  d.   linear and polar  
  18.Except for helium, noble gas atoms have _________.  
  a.   quartets  
  b.   duets  
  c.   octets  
  d.   trios  
  19.Increasing a liquid's temperature causes its vapor pressure to ___________.  
  a.   remain constant  
  b.   increase  
  c.   decrease  
  d.   change to solid  

The center of positive charge in the H2O molecule lies ______________________.
  a.   on one of the hydrogen atoms  
  b.   between the two hydrogen atoms  
  c.   in the geometric center of the molecule  
  d.   on the oxygen atom  

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