Which of the following statements about diamond and graphite is true?
Detailed Explanation:
❌ Statement 1 – Incorrect: Diamond is an electrical insulator (no free electrons), while graphite is a good electrical conductor (has delocalized electrons in layers).
❌ Statement 2 – Incorrect: Diamond has a tetrahedral crystal structure (each carbon bonded to 4 others in 3D), while graphite has a hexagonal layered structure (each carbon bonded to 3 others in 2D layers).
❌ Statement 3 – Incorrect: Diamond is the hardest natural substance (Mohs scale 10), while graphite is soft and slippery (Mohs scale 1-2) due to weak van der Waals forces between layers.
Both are allotropes of carbon with vastly different physical properties due to different atomic arrangements.
Question 4 of 8 Atomic Structure
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