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Why is there an allotrope of silicon with the same structure as diamond but no allotrope of silicon with the same structure as graphite?
Silicon has an allotrope with a diamond-like structure (beta-silicon or lonsdaleite) due to its ability to form tetrahedral covalent bonds like carbon. However, the lack of an allotrope with a graphite-like structure is because silicon atoms have a larger atomic radius than carbon, making it difficult to form the layered structure found in graphite.
What substance is an example of a network solid?
An example is the boron nitride. Another is silicon dioxide.
What does graphite turn into when put under pressure?
Graphite turns into diamonds when put under extreme pressure and heat. Diamond is a denser and harder form of carbon compared to graphite.
Is graphite a silicate?
No a silicate is a compound containing silicon and oxygen. Graphite is pure carbon.
What is the symbol for silicon-29?
The chemical symbol for the element Silicon is Si. If you wanted to distinguish Silicon 29 from other Silicon isotopes you would write 29Si.
Why is there an allotrope of silicon with the same structure as diamond but no allotrope of silicon with the same structure as graphite?
Silicon has an allotrope with a diamond-like structure (beta-silicon or lonsdaleite) due to its ability to form tetrahedral covalent bonds like carbon. However, the lack of an allotrope with a graphite-like structure is because silicon atoms have a larger atomic radius than carbon, making it difficult to form the layered structure found in graphite.
Are diamonds and graphite both polymorphs of pure silicon?
No, diamonds and graphite are not polymorphs of silicon. Diamonds are a polymorph of carbon, while graphite is also a polymorph of carbon. Silicon does not form diamonds or graphite as polymorphs.
What substance is an example of a network solid?
An example is the boron nitride. Another is silicon dioxide.
Does graphite contain silica?
No. A silicate is a compound containing silicon, oxygen and something else.Graphite is pure carbon. Black and slippery, it is one of the allotropes of carbon, along with amorphous carbon and diamond.
What is diamond and silicon?
Diamond is a naturally occurring allotrope of carbon known for its hardness and brilliance, commonly used in jewelry and cutting tools. Silicon is a chemical element with atomic number 14, widely used in electronic devices due to its semiconductor properties.
What is the chemical symbol for silicon?
The chemical symbol of silicon is Si.
What are Diamond graphite and quartz are examples of?
Diamond, graphite, and quartz are examples of different types of minerals. Diamond and graphite are both forms of carbon, differing in their atomic structure and properties; diamond is known for its hardness and brilliance, while graphite is soft and used as a lubricant and in pencils. Quartz, on the other hand, is a mineral composed of silicon dioxide and is known for its hardness and variety of forms, making it a common component in many rocks. Collectively, these substances illustrate the diversity of mineral structures and properties found in nature.
The chemical composition of graphite and diamond is?
Graphite and Diamonds are both allotropes of Carbon.
Do both diamond and graphite have a crystal structure?
Yes. Diamond is isometric, graphite is hexagonal.
Which can be used as a lubricant - graphite or diamond?
graphite
What does graphite turn into when put under pressure?
Graphite turns into diamonds when put under extreme pressure and heat. Diamond is a denser and harder form of carbon compared to graphite.
What is the chemical symbol for graphite?
Graphite is an allotrope of carbon. the symbol for carbon is C.
