Mrs. Fullilove's Fifth Grade Pictures and Videos
If diamonds and graphite are both made out of carbon atoms
then why are their properties so different?

FACT:  Diamond is the hardest known natural mineral. 
FACT:  Graphite is soft and slippery. 
FACT:  Both diamond and graphite are made ONLY of Carbon atoms. 
QUESTION:  Why are diamond and graphite so different if they are both formed exclusively from Carbon?


Think about the physical properties of graphite and diamonds.  Look at the images below. 


Above:  Graphite slips off and leaves a mark on the paper. 
Diamonds are so strong that they are used as cutting tools in many industries.

Materials:


-marshmallows
-toothpicks
-diagram of graphite structure
-diagram diamond structure

How do the different atom arrangements look different?

How would the arrangement of the diamond atoms make their bonds stronger than the bonds of graphite atoms?
We recreated the structure of the carbon atoms.   Then we recreated the structure of the diamond atoms.



Look at the differences in the way that the atoms are arraged and bonded to see if you can figure out why diamonds would have more strength than slippery graphite.  What do you notice about the way that the atoms are arranged?
     
  Click here to learn more about how atoms form bonds with eachother.  


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