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April 18, 2014

Homework Help: physical sciences

Posted by lalt on Friday, May 25, 2012 at 9:28pm.

Diamond is the hardest substance known while graphite is one of the softest. Both are made only of carbon atoms. What is the most likely reason why this is true?

A. Both are bonded ionically.


B. Both are bonded covalently.


C. The carbon atoms are arranged differently in diamond than in graphite.


D. The carbon atoms in diamond are bonded to each other but in graphite there are no bonds.

CAN SOMEONE HELP MEE, PLEASEEE.. C:

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