The Kinetic Theory of Matter

Practice Test
  1.Gas particles _______________ kinetic energy when they collide with other particles or the walls of their container.  
  a.   lose no  
  b.   gain much  
  c.   lose some  
  d.   gain some  
  2.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  
  3.Which of the following is a vapor?  
  a.   oxygen  
  b.   steam  
  c.   helium  
  d.   hydrogen  
  4.An arrow points in the direction of the _______________ of a polar covalent molecule.  
  a.   negative end  
  b.   positive end  
  c.   bottom  
  d.   center  
  5.The most stable arrangement of electrons in an atom's sublevels and orbitals is called its ________________.  
  a.   shape  
  b.   electron configuration  
  c.   electronic arrangement  
  d.   electron orientation  
  6.In general, atomic size ___________ from top to bottom within a Group.  
  a.   increases, then decreases  
  b.   increases  
  c.   remains the same  
  d.   decreases  
  7._______________ is a measure of the size of an atom.  
  a.   Atomic radius  
  b.   Number of electrons  
  c.   Nuclear charge  
  d.   Oxidation number  
  8.The arrangement of electron pairs around the nitrogen atom in the ammonia molecule, NH3, is best described as _______________.  
  a.   pyramidal  
  b.   tetrahedral  
  c.   square planar  
  d.   linear  
  9.The energy released as 1 kg of a substance _____________ at its freezing point is called its heat of fusion.  
  a.   solidifies  
  b.   melts  
  c.   freezes  
  d.   evaporates  
  10.Covalent bonding results when this element reacts with fluorine.  
  a.   iron  
  b.   lithium  
  c.   oxygen  
  d.   potassium  
  11.The arrangement of electron pairs around each of the two carbon atoms in the ethene molecule, C2H4, is best described as _________________.  
  a.   tetrahedral  
  b.   square planar  
  c.   linear  
  d.   trigonal planar  
  12.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.   periodic law  
  b.   Dobereiner's hypothesis  
  c.   Group theory  
  d.   Mendeleev theory  
  13.This transition element is commonly used as a coating on iron and steel to prevent corrosion.  
  a.   zinc  
  b.   niobium  
  c.   scandium  
  d.   gold  
  14.Noble gases are unreactive because they have a full complement of ________________.  
  a.   valence electrons  
  b.   neutrons  
  c.   protons  
  d.   inner-level electrons  
  15.Mendeleev saw that properties of the elements repeated in an orderly way when he organized them according to ______________.  
  a.   increasing atomic size  
  b.   increasing volume  
  c.   decreasing atomic number  
  d.   increasing atomic mass  
  16.This transition element is used in many barometers and thermometers.  
  a.   copper  
  b.   iron  
  c.   titanium  
  d.   mercury  
  17.______________ is a model of gas behavior that is valid over a wide range of conditions.  
  a.   Volume  
  b.   Pressure  
  c.   An ideal gas  
  d.   The gas hypothesis  
  18.This element is a halogen.  
  a.   carbon  
  b.   nitrogen  
  c.   bromine  
  d.   oxygen  
  19.What electron configuration describes the outermost energy level of a selenium atom?  
  a.   4s24p4  
  b.   4s23d10  
  c.   4s24d104p4  
  d.   4s24d4  
  20.The elements in Groups 1, 2, and 13-17 are called the _____________.  
  a.   main group elements  
  b.   noble gases  
  c.   transition elements  
  d.   alkali metals  

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