Why is diamond the hardest known material?

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Tags

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2. #these
3. #extremely
4. #rigid
5. #carbon
6. #hardest
7. #chemical
8. #tetrahedral
9. #tightly
10. #earth
11. #bonded
12. #diamond
13. #electrons
14. #crystal
15. #bonds
16. #simple
17. #atoms
18. #other
19. #shared
20. #strong
21. #arrangement
22. #resulting
23. #substances