The Kinetic Theory of Matter

Practice Test
  1.The boiling point of methane, CH4, is ___________ than that of water.  
  a.   slightly higher  
  b.   slightly higher  
  c.   much lower  
  d.   much higher  
  2.What group of elements was unknown to Mendeleev when he first organized his periodic table?  
  a.   Group 18, the noble gases  
  b.   Group 1, the alkali metals  
  c.   the transition elements  
  d.   Group 2, the alkaline earth metals  
  3.Which of these is the electron configuration of an atom most likely to lose an electron?  
  a.   1s2 2s2 2p6 3s2 3p5  
  b.   1s2 2s2 2p6 3s2 3p6 4s1  
  c.   [He]2s2 2p5  
  d.   1s2 2s2 2p6  
  4.A state of ___________ is reached in a sealed container that contains significant amounts of both a liquid substance and its vapor.  
  a.   elevation  
  b.   Equilibruim  
  c.   freezing  
  d.   reaction  
  5.Lanthanides and actinides are known as _________________.  
  a.   noble gases  
  b.   halogens  
  c.   metalloids  
  d.   inner transition elements  
  6.These elements are soft, silvery metals and good conductors of heat and electricity.  
  a.   halogens  
  b.   metalloids  
  c.   transition elements  
  d.   alkali metals  
  7._______________ is a measure of the size of an atom.  
  a.   Oxidation number  
  b.   Number of electrons  
  c.   Atomic radius  
  d.   Nuclear charge  
  8.In general, _________ are malleable and ductile.  
  a.   noble gases  
  b.   nonmetals  
  c.   metalloids  
  d.   metals  
  9.The two rows beneath the main body of the periodic table contain the _________________.  
  a.   noble gases  
  b.   alkali metals  
  c.   halogens  
  d.   inner transition elements  

The center of positive charge in the H2O molecule lies ______________________.
  a.   on one of the hydrogen atoms  
  b.   on the oxygen atom  
  c.   in the geometric center of the molecule  
  d.   between the two hydrogen atoms  
  11.This transition element is commonly used as a coating on iron and steel to prevent corrosion.  
  a.   gold  
  b.   niobium  
  c.   zinc  
  d.   scandium  
  12.At room temperature, gas particles move at roughly _____________ m/s.  
  a.   0.1 to 0.5  
  b.   1 to 2  
  c.   10 000  
  d.   100 to 1000  
  13.The elements in Groups 1, 2, and 13-17 are called the _____________.  
  a.   noble gases  
  b.   main group elements  
  c.   alkali metals  
  d.   transition elements  
  14.The constant, random motion of tiny chunks of matter is called _________________.  
  a.   linear motion  
  b.   kinetic motion  
  c.   Brownian motion  
  d.   parabolic trajectory  
  15.The shielding effect is the tendency of inner energy level electrons to block the attraction of the nucleus for ________________.  
  a.   valence electrons  
  b.   other atoms  
  c.   protons  
  d.   neutrons  
  16.Many transition elements have multiple positive oxidation states because their atoms can lose some of their _______________.  
  a.   d electrons  
  b.   s electrons  
  c.   nuclear protons  
  d.   p electrons  
  17.When an iron atom loses all its 4s electrons and one 3d electron, its oxidation number is ______.  
  a.   11+  
  b.   3+  
  c.   1+  
  d.   5+  
  18. A transistor may be produced by placing a p-typesemiconductor between two _______________.  
  a.   n-type semiconductors  
  b.   electrons  
  c.   molecules  
  d.   p-type semiconductors  
  19.The _______________ states that the submicroscopic particles of all matter are in constant, random motion.  
  a.   molecular hypothesis  
  b.   Brownian law  
  c.   atomic theory  
  d.   kinetic theory  

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

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