What does allotrope mean?
An allotrope is a form of a chemical element that differs in its physical properties, but not in its chemical properties, from other forms of the same element. This concept is particularly relevant in chemistry, where different allotropes of an element can have distinct physical properties, such as melting and boiling points, and crystal structures. The term 'allotrope' is derived from the Greek words 'allos' and 'trepein', meaning 'other' and 'to turn', respectively. The different allotropes of an element can be distinguished by their physical properties, and they often have distinct uses and applications. For example, graphite and diamond are allotropes of carbon, with graphite being a soft, black substance and diamond being a hard, transparent crystal. The study of allotropes is an important area of research in chemistry, as it can provide insights into the properties and behavior of different elements and their compounds.
nounA form of a chemical element that differs in its physical properties, but not in its chemical properties, from other forms of the same element.
- A form of a chemical element that differs in its physical properties, but not in its chemical properties, from other forms of the same element.
"Graphite and diamond are allotropes of carbon."
"Graphite and diamond are allotropes of carbon."
"The different allotropes of sulfur have distinct physical properties."
The plural form 'allotropes' is used to describe multiple forms of a chemical element.
"The different allotropes of sulfur have distinct physical properties."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of allotrope
The term 'allotrope' was first introduced in the 19th century to describe the different forms of a chemical element. It is derived from the Greek words 'allos' and 'trepein', meaning 'other' and 'to turn', respectively. The concept of allotropes is closely related to the concept of isomers, which are molecules that have the same molecular formula but differ in their structure and properties. The study of allotropes has led to a greater understanding of the properties and behavior of different elements and their compounds.
Usage notes
The term 'allotrope' is often used to describe the different forms of a chemical element, such as the different allotropes of carbon.