Q.1
What kind of energy is released or absorbed when chemical bonds are formed and broken?
  • kinetic energy
  • thermal (heat) energy
  • chemical energy
  • light energy
Q.2
What kind of energy is stored in the chemical bonds between atoms?
  • kinetic energy
  • thermal energy
  • chemical energy
  • light energy
Q.3
How many electrons are shared in one chemical bond?
  • 2
  • 4
  • 6
  • 8
Q.4
How do atoms fill their valence level with electrons?
  • share with other atoms
  • steal from other atoms
  • give up electrons to other atoms
Q.5
How many valence electrons do most electrons want in their valence shell to be stable? (Except hydrogen!)
  • 2
  • 4
  • 6
  • 8
Q.6
How can you determine an atom's valence electrons?
  • the column on the periodic table
  • the row on the periodic table
  • the atomic number
  • the atomic mass
0 h : 0 m : 1 s