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.
Ritaprava said:
9 years ago
Boron Carbide is the hardest substance. Diamond is the hardest element form.
Vinoth said:
9 years ago
Can anyone know the reaction between diamond and fire?
During this reaction, diamond burnt quickly.
During this reaction, diamond burnt quickly.
Raushansingh said:
9 years ago
Diamond is the hardest metal in the earth it is naturally occurring substance diamond cut diamond. We know silicon carbide cut hardest substance.
Aranann said:
9 years ago
Diamond is a 3 diemensional lattice.
A.Sathesh karthick said:
9 years ago
Diamonds can be cut only through diamond. But for other metals they are cut through other metal. This shows the strongest in world.
Viru said:
9 years ago
Diamond is currently thought to be the hardest natural material on Earth, having a hardness of ten out of ten on the Mohs scale of mineral hardness.
Diamond is made up of carbon atoms which share strong covalent bonds (where electrons are shared between atoms) and is equally spaced in a lattice arrangement.
Diamond is made up of carbon atoms which share strong covalent bonds (where electrons are shared between atoms) and is equally spaced in a lattice arrangement.
Sana said:
9 years ago
Platinum is not the hardest substance on the earth. It has electronic cloud of electrons.
Sana said:
9 years ago
Because of very close packing of atoms of carbon and it have no free spaces.
Jayanti said:
9 years ago
Platinum is the hardest substance available on Earth.
Abc said:
9 years ago
Diamond is the hardest naturally occurring substance found on Earth. But it is not the hardest substance. Wurtzite boron nitride (synthetic) and lonsdaleite (which comes from meteorites) are both harder.
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