The Kinetic Theory of Matter

Practice Test
  1.The light emitted by the gas in a neon sign is _________________.  
  a.   a filament  
  b.   an incandescent light  
  c.   an electron  
  d.   an emission spectrum  
  2.Among the elements fluorine, lithium, cesium, and astatine, which would you expect to have the smallest atomic radius?  
  a.   cesium  
  b.   fluorine  
  c.   lithium  
  d.   astatine  
  3.When materials called _____________ melt, they lose their rigid organization in only one or two dimensions.  
  a.   liquids  
  b.   solids  
  c.   solid crystals.  
  d.   liquid crystals  
  4.Which of these is the electron configuration of an atom most likely to gain an electron?  
  a.   1s2 2s2 2p6 3s1  
  b.   1s2 2s2 2p6  
  c.   1s2 2s2 2p6 3s2 3p5  
  d.   1s2 2s2 2p6 3s2 3p6 4s1  
  5.A state of ___________ is reached in a sealed container that contains significant amounts of both a liquid substance and its vapor.  
  a.   Equilibruim  
  b.   freezing  
  c.   reaction  
  d.   elevation  
  6.Chemical bonding results in ________________.  
  a.   decreased stability  
  b.   longer bond lengths  
  c.   increased stability  
  d.   lower density  
  7.These elements have some physical and chemical properties of metals and other properties of nonmetals.  
  a.   lanthanides  
  b.   metalloids  
  c.   actinides  
  d.   transition elements  
  8.Sodium and chlorine react to produce ______________.  
  a.   liquid sodium  
  b.   sodium chloride  
  c.   sodium chlorine  
  d.   gaseous chlorine  
  9.The arrangement of electron pairs around the nitrogen atom in the ammonia molecule, NH3, is best described as _______________.  
  a.   linear  
  b.   square planar  
  c.   tetrahedral  
  d.   pyramidal  
  10.The statement that the physical and chemical properties of the elements repeat in a regular pattern when they are arranged in order of increasing atomic number is known as the ______________.  
  a.   Mendeleev theory  
  b.   Dobereiner's hypothesis  
  c.   Group theory  
  d.   periodic law  

  a.   red  
  b.   violet  
  c.   green  
  d.   blue  
  12.At the same temperature, the average speed of hydrogen molecules is _____________ that of chlorine molecules.  
  a.   much greater than  
  b.   about the same as  
  c.   slightly less than  
  d.   much less than  
  13. This useful transition element is the major component in steel.  
  a.   iron  
  b.   nickel  
  c.   tungsten  
  d.   chromium  
  14._____________ is the measure of an atom's ability to attract electrons in a bond.  
  a.   Ionic radius  
  b.   Electronegativity  
  c.   melting point  
  d.   Shielding  
  15.Except for helium, noble gas atoms have _________.  
  a.   octets  
  b.   quartets  
  c.   trios  
  d.   duets  
  16.This Group 14 element is used in making ceramics, glass, and cement.  
  a.   tin  
  b.   silicon  
  c.   lead  
  d.   carbon  
  17.These two Group 15 elements are important components of many fertilizers.  
  a.   antimony and arsenic  
  b.   nitrogen and phosphorus  
  c.   nitrogen and arsenic  
  d.   bismuth and phosphorus  
  18.Gas particles _______________ kinetic energy when they collide with other particles or the walls of their container.  
  a.   gain much  
  b.   lose some  
  c.   lose no  
  d.   gain some  
  19.In general, electronegativity ___________ atomic number within a period.  
  a.   remains constant with  
  b.   is inversely proportional to  
  c.   decreases with  
  d.   increases with  

The properties of the chemical elements in the periodic table occur in ______________.
  a.   descending sequence  
  b.   ascending sequence  
  c.   do discernable pattern  
  d.   repeating patterns  

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