How is graphite different from other allotropes of carbon? a. graphite forms only from carbon atoms, without other atoms mixed in. b. the carbon atoms in graphite are arranged randomly, without a crystalline structure. c. the carbon atoms in graphite are arranged in widely spaced layers. d. the carbon atoms in graphite are packed extremely densely and tightly.
C. The carbon atoms in graphite are arranged in widely spaced layers.
Allotropes are different structural forms of the same element that exist is the same physical state. In other words, they differ in their bonding arrangement.
Carbon has two allotropes: diamond and graphite.
In diamond each C atom is sp3 hybridised and is bonded to 4 other C atoms forming a tetrahedral unit which extends into a crystalline network. In contrast, each C atom in graphite is sp2 hybridised and bonded to 3 other carbon atoms in a crystalline hexagonal layer like structure.
Thus, the carbon atoms in graphite are arranged in widely spaced layers.
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