General Knowledge - General Science - Discussion

Because due to the strong bonding of the carbon elements held together.

I have read somewhere that platinum is now the hardest metal present on earth.

Right answer is diamond becousedue to the strong bonding of the carbon elements held together All metals are hard, and so all not metals are soft - obviously the characteristics of all metals and non metals are opposite to each other. Since diamond is hard, we cannot say that it is a metal. It is an exceptional case in non metals. DiDiamonds are considered to b the hardest substance on earth, diamonds are brilliant & bright. The speed of light in a vacuum is 186, 000miles per second but light slows down a little when passing through a matter. Diamonds also bends and reflect light and break it up into the colours of the rainbow, which is what gives them their sparkle!amond is a hard " non - metal ".

Because of formation of "cage-structure".

Diamond is the allotropy form of carbon.

Hardness is property of material which resist to abbration. It is decided by scratching a lower hard material with help of a more hard material.hardness is measured on the Moh's scale. On Moh's scale Diamond has highest value which is equal to 10 & talc has lowest hardness value that is 1(one).

It is the solid or crystal form of carbon. It is change due to high temperature and pressure under earth with this continuous process it is change into Diamond. It is the most hardest substance in the world. Diamond is found in earth in black form but after a lot of sharpening process it is seen in a shining form.

Due to pure atomic crystal structure it has very strong metallic bond hence it is the hardest one and also used for cutting the glasses.

Hardest substance on earth is diamond because it is a allotrope of carbon in which the carbon atoms bonded in a 3d structure.

Diamond is one of the most stable compounds. This is because there are no free electrons present and each carbon atom forms covalent bonds with 4 other carbon atoms forming tetrahedrons.