The Kinetic Theory of Matter

Practice Test
  1.___________ is the most common form of matter in the universe but the least common on Earth.  
  a.   Gas  
  b.   Solid  
  c.   Liquid  
  d.   Plasma  
  2.When materials called _____________ melt, they lose their rigid organization in only one or two dimensions.  
  a.   solid crystals.  
  b.   liquid crystals  
  c.   liquids  
  d.   solids  
  3.This Group 14 element is used in making ceramics, glass, and cement.  
  a.   carbon  
  b.   tin  
  c.   silicon  
  d.   lead  
  4.Except for helium, noble gas atoms have _________.  
  a.   octets  
  b.   duets  
  c.   quartets  
  d.   trios  
  5.Many transition elements have multiple positive oxidation states because their atoms can lose some of their _______________.  
  a.   nuclear protons  
  b.   p electrons  
  c.   s electrons  
  d.   d electrons  
  6.The CO molecule is _____________________.  
  a.   linear and nonpolar  
  b.   trigonal planar and polar  
  c.   tetrahedral and nonpolar  
  d.   linear and polar  
  7.In general, a metal atom's valence electrons are _____________ the atomic nucleus.  
  a.   tightly bound to  
  b.   very near  
  c.   loosely bound to  
  d.   within  
  8. This useful transition element is the major component in steel.  
  a.   nickel  
  b.   chromium  
  c.   iron  
  d.   tungsten  
  9._____________ is the measure of an atom's ability to attract electrons in a bond.  
  a.   melting point  
  b.   Ionic radius  
  c.   Electronegativity  
  d.   Shielding  
  10.At the same temperature, the average speed of hydrogen molecules is _____________ that of chlorine molecules.  
  a.   much greater than  
  b.   slightly less than  
  c.   much less than  
  d.   about the same as  
  11.In general, electronegativity ___________ atomic number within a period.  
  a.   increases with  
  b.   is inversely proportional to  
  c.   decreases with  
  d.   remains constant with  
  12.At room temperature, gas particles move at roughly _____________ m/s.  
  a.   1 to 2  
  b.   10 000  
  c.   0.1 to 0.5  
  d.   100 to 1000  
  13.The Heisenberg uncertainty principle states that it is fundamentally impossible to know both the ____________________ of the electron at the same time.  
  a.   position and energy  
  b.   energy and orientation  
  c.   mass and position  
  d.   mass and size  

The properties of the chemical elements in the periodic table occur in ______________.
  a.   descending sequence  
  b.   repeating patterns  
  c.   do discernable pattern  
  d.   ascending sequence  
  15.The arrangement of electron pairs around the nitrogen atom in the ammonia molecule, NH3, is best described as _______________.  
  a.   pyramidal  
  b.   linear  
  c.   square planar  
  d.   tetrahedral  
  16.The elements in Groups 1, 2, and 13-17 are called the _____________.  
  a.   main group elements  
  b.   transition elements  
  c.   alkali metals  
  d.   noble gases  
  17.The light emitted by the gas in a neon sign is _________________.  
  a.   an emission spectrum  
  b.   an incandescent light  
  c.   an electron  
  d.   a filament  
  18.Among the elements fluorine, lithium, cesium, and astatine, which would you expect to have the smallest atomic radius?  
  a.   lithium  
  b.   fluorine  
  c.   astatine  
  d.   cesium  
  19.Why was Mendeleev's periodic table widely accepted?  
  a.   He predicted the existence and properties of undiscovered elements.  
  b.   He organized the first 14 known elements.  
  c.   He was the first to notice a pattern of similar properties among elements.  
  d.   His periodic table listed all of the elements in the correct order.  
  20.Heavy elements such as seaborgium are created in _____________.  
  a.   test tubes  
  b.   erlenmeyer flasks  
  c.   earthquakes  
  d.   particle accelerators  

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