Understanding Network Solids: From Graphite to Diamond

What element is common to both diamond and graphite?

• Carbon

• Silicon

• Oxygen

• Hydrogen

Tags

NGSS.MS-PS1-1

What type of bonds are found in both diamond and graphite?

• Hydrogen bonds

• Covalent bonds

• Metallic bonds

• Ionic bonds

How does the arrangement of carbon atoms differ between diamond and graphite?

• There is no difference

• Only in the number of atoms

• In their three-dimensional structure

• In the type of chemical bonds

What makes network solids like diamond and graphite strong and stable?

• Their molecular weight

• The network structure of their atoms

• The presence of metallic bonds

• Their crystalline form

Why is diamond much harder than graphite?

• Diamond contains more carbon atoms

• Because of its three-dimensional network of carbon atoms

• Due to the presence of stronger covalent bonds

• Because of its cubic crystal structure

What property allows graphite to conduct electricity?

• Graphite's hexagonal crystal structure

• The presence of ionic bonds

• The mobility of its pi electrons

• Its layered structure

Why are diamonds poor conductors of electricity?

• The presence of sigma bonds restricts electron movement

• Because of their tetrahedral structure

• Due to the type of covalent bonds they have

• Because they do not have free electrons

What is the primary reason graphite serves as an excellent lubricant?

• The strength of its covalent bonds

• Its electrical conductivity

• The weak van der Waals forces between layers

• Its softness

Under what conditions can graphite be transformed into diamond?

• Low temperature and low pressure

• Low temperature and high pressure

• High temperature and low pressure

• High temperature and high pressure

Why is it nearly impossible for diamonds to naturally transform back into graphite on Earth?

• Graphite is more stable than diamond

• The activation energy required is too high

• Diamonds are too hard to revert

• The process requires extremely high pressure