Solids and Modern Materials

Front

What type of bonds are present in a diamond?

Back

Covalent Bonds

Front

What is the structure of graphite at the atomic level?

Back

Graphite has a layered structure with hexagonally arranged atoms.

Front

What percentage of gold is in 18 carat gold?

Back

75% gold

Front

Can you name an example of a covalent network solid?

Back

Diamond

Front

What is the name of the cubic unit cell that has atoms located at each corner and the centers of all the faces?

Back

Face-Centered Cubic unit cell

Front

What is a covalent network solid?

Back

A solid where atoms are bonded by covalent bonds in a continuous network.

Front

How does the structure of diamond contribute to its properties?

Back

The strong covalent bonds in diamond give it high hardness and a high melting point.

Front

What is the difference between 24 carat gold and 18 carat gold?

Back

24 carat gold is 100% pure gold, while 18 carat gold is 75% gold.

Front

What are the characteristics of covalent bonds?

Back

Covalent bonds involve the sharing of electron pairs between atoms.

Front

What is the significance of the arrangement of atoms in graphite?

Back

The layered structure allows for easy sliding of layers, making graphite a good lubricant.