The Kinetic Theory of Matter

Practice Test
      
  1.This halogen is absorbed readily by the thyroid gland.  
  a.   iodine  
  b.   bromine  
  c.   fluorine  
  d.   chlorine  
      
  2.Lanthanides and actinides are known as _________________.  
  a.   inner transition elements  
  b.   halogens  
  c.   metalloids  
  d.   noble gases  
      
  3.The light emitted by the gas in a neon sign is _________________.  
  a.   an electron  
  b.   an incandescent light  
  c.   a filament  
  d.   an emission spectrum  
      
  4.________________ is the reverse of evaporation.  
  a.   Melting  
  b.   Boiling  
  c.   Freezing  
  d.   Condensation  
      
  5.The arrangement of electron pairs around the nitrogen atom in the ammonia molecule, NH3, is best described as _______________.  
  a.   linear  
  b.   tetrahedral  
  c.   square planar  
  d.   pyramidal  
      
  6.Covalent bonding results when this element reacts with fluorine.  
  a.   oxygen  
  b.   potassium  
  c.   lithium  
  d.   iron  
      
  7.Which elements would you expect to be the most reactive alkaline earth metal?  
  a.   francium  
  b.   radium  
  c.   lithium  
  d.   beryllium  
      
  8.Many transition elements have multiple positive oxidation states because their atoms can lose some of their _______________.  
  a.   p electrons  
  b.   nuclear protons  
  c.   d electrons  
  d.   s electrons  
      
  9.The space in which there is a 95% probability of finding an electron is called __________.  
  a.   an orbital  
  b.   an energy sublevel  
  c.   an electron sphere  
  d.   an energy level  
      
  10.Which pair of elements would you expect to have similar properties?  
  a.   Mg and Ti  
  b.   Li and Fe  
  c.   Si and Ge  
  d.   F and Ne  
      
  11.Water molecules stick together to form droplets because of their ___________.  
  a.   covalencies  
  b.   volumes  
  c.   polarities  
  d.   masses  
      
  12.Heavy elements such as seaborgium are created in _____________.  
  a.   test tubes  
  b.   erlenmeyer flasks  
  c.   earthquakes  
  d.   particle accelerators  
      
  13.The shielding effect is the tendency of inner energy level electrons to block the attraction of the nucleus for ________________.  
  a.   neutrons  
  b.   valence electrons  
  c.   protons  
  d.   other atoms  
      
  14. This useful transition element is the major component in steel.  
  a.   chromium  
  b.   iron  
  c.   tungsten  
  d.   nickel  
      
  15.Why was Mendeleev's periodic table widely accepted?  
  a.   He predicted the existence and properties of undiscovered elements.  
  b.   His periodic table listed all of the elements in the correct order.  
  c.   He was the first to notice a pattern of similar properties among elements.  
  d.   He organized the first 14 known elements.  
      
  16.The elements in Groups 1, 2, and 13-17 are called the _____________.  
  a.   alkali metals  
  b.   noble gases  
  c.   transition elements  
  d.   main group elements  
      
  17.The third energy level may have ____________ sublevels.  
  a.   four  
  b.   three  
  c.   two  
  d.   eight  
      
  18.Gas particles _______________ kinetic energy when they collide with other particles or the walls of their container.  
  a.   lose no  
  b.   gain some  
  c.   gain much  
  d.   lose some  
      
  19.According to the kinetic-molecular theory, which of these describes a gas?  
  a.   small particles in constant, random motion  
  b.   large particles in constant, random motion  
  c.   large particles far apart in uniform motion  
  d.   small particles far apart in uniform motion  
      
  20.Increasing a liquid's temperature causes its vapor pressure to ___________.  
  a.   increase  
  b.   change to solid  
  c.   remain constant  
  d.   decrease  

 
   
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