Noun
The property of existing in two or more conditions which are distinct in their physical or chemical relations.
Source: Webster's dictionaryAlthough many other chemists have repeated this advice, IUPAC and most chemistry texts still favour the usage of allotrope and allotropy for elements only. Source: Internet
By 1912, Ostwald noted that the allotropy of elements is just a special case of the phenomenon of polymorphism known for compounds, and proposed that the terms allotrope and allotropy be abandoned and replaced by polymorph and polymorphism. Source: Internet
History The concepts of allotropy was originally proposed in 1841 by the Swedish scientist Baron Jöns Jakob Berzelius (1779–1848). citation. Source: Internet
Polymorphism and allotropy main The same group of atoms can often solidify in many different ways. Source: Internet
The ability of an element to exist in one of many structural forms is known as 'allotropy'. Source: Internet