Why diamond is very hard explain?

The rigid network of carbon atoms, held together by strong covalent bonds, makes diamond very hard. … Like silica, diamond has a very high melting point and it does not conduct electricity.

Why is diamond hard explain?

Diamond is harder than graphite because each of its carbon atoms form four covalent bonds in a tetrahedral structure and also due to the presence of strong covalent bonds in it. … Therefore, diamond is hard but graphite is soft and slippery even though both have carbon present in them.

Why is diamond hard class 11?

In diamond the octet of each carbon atom is completed. Structure of the diamond is a rigid three dimensional network. This causes high density and hardness to the diamond. Diamond is chemically inactive due to its rigid three dimensional structure.

Why is diamond Class 12 hard?

Each carbon atom in a diamond is covalently bonded to four other carbons forming a tetrahedral structure. … This stable network of covalent bonds and hexagonal rings makes diamond the hardest allotrope of carbon and also the hardest mineral.

Why is diamond hard 10th?

Diamond is hard because of the strong covalent bond between its carbon atoms forming a regular tetrahedron which is hard to break. … The various layers of the carbon atoms are far apart from each other; hence, the covalent bond cannot exist.

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Why diamond is hard Quora?

Diamond is composed of pure carbon and the atomic bonding of the atoms makes it the hardest material. Extremely strong bonding makes diamond hardest among all other substances, but there is one direction where the bonds are not as strong and a diamond can be cleaved along this direction with impact.

Why is diamond so hard Mcq?

Why diamond is very hard ? Because it is composed of extremely small carbon atoms packed extremely tight, where they share atoms in a type of bonding known as covalent bonding as a cubic structure.

Is diamond hard and brittle?

Diamonds are no longer the world’s hardest substance

“Whilst its cubic arrangement makes a diamond very hard, it is also somewhat brittle,” says Professor Phillips. “This is because there are weaknesses along the cubic planes.

Why is diamond hard and graphite soft and brittle?

Graphite is soft because it has weak inter molecular forces between its layers. Diamond is hard due to its giant covalent lattice and it has many strong covalent bonds.

Why is diamond brittle?

Because diamond is the purest form of carbon and carbon is covalent in nature it can share electrons can’t exchange them, it doesn’t have free electrons like that of metals due to which it doesn’tt support metallic bonding and electrons are bound to remain in their shells ,it has strong packing but no mobility of …

Why does diamond have a rigid structure?

Each carbon atom forms 4 bonds. Explanation: Each carbon atom has four electrons in its outer shell, all of which form covalent bonds which are strong and hard to break. Therefore it has a rigid structure, and cannot conduct electricity due to the lack of free electrons.

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