2.  Two atoms become stable by sharing electrons  Form between nonmetals

3.  Nonmetals bond to other nonmetals by sharing electrons  Hydrogen can bond by sharing electrons too  Most nonmetals can bond with another atom of the same element  The force that holds atoms together in a covalent bond is the attraction of each atoms’ nucleus for the shared pair of electrons  A molecule is a neutral group of atoms joined by covalent bonds

4.  The number of covalent bonds that a non-metal can form equals the number of electrons needed to make a total of eight  EXAMPLE—Oxygen has 6 valence electrons. How many bonds can it form?

5.  Two atoms share two pairs of electrons=double bond  Two atoms share three pairs of electrons=triple bond

6.  http://www.pbslearningmedia.org/asset/ lsps07_int_covalentbond/