General Knowledge - General Science - Discussion
Discussion Forum : General Science - Elements and Metals (Q.No. 12)
12.
The hardest substance available on earth is
Discussion:
79 comments Page 3 of 8.
Aashi Singla said:
1 decade ago
The diamond crystal is made up of carbon atoms which are powerfully bonded to one another by a network of covalent bonds. Due to this diamond structure is very rigid and due to this it is very hard substance and therefore used in drilling oil wells and making glass cutters.
Prajapati pratik said:
1 decade ago
Dimond is used in digging machine that capable to make hole in metal.
Navya chowdary said:
1 decade ago
Because of the presence of closely packed carbon bonds.
Vaishnavi said:
1 decade ago
Diamond is brilliant and it has a specific arrangement of atoms in it. Since it is the hardest and used to cut metals and glass.
Mohan said:
1 decade ago
Diamond has more complex carbon bonds.
Veronica said:
1 decade ago
Diamond is one of the allotropes of Carbon with tough, complex packing of bonds.
Hemant said:
1 decade ago
Diamond is purely made of carbon in which the atoms are strongly attached to each other.
ROBERT DOWNEY JR. said:
1 decade ago
Diamond can only be heated up to 200 degrees but for gold etc only does heat up less than 200 degree.
Meera said:
1 decade ago
Diamond is the allotrope of carbon, which forms strong covalent bonds of sp3 over each other with out any space between them like cage structure. It is so strong that diamond is cuted by another diamond only.
Ram shankar said:
1 decade ago
It is because the carbon have sigma bond and arranged like branches and the atom's are 3 dimensional and other allotropes of carbon have smooth surface (ex. Graphite) which by pressing on a hard surface get's erased or eradicated, unlike Diamond.
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