sentence: Any physical differences are because of how the atoms are joined together.
sentences_before: Allotropes are different forms of the same chemical element. All elements are made up uniquely of their own atoms.
sentences_after: Many elements show allotropy because there are a number of ways in which the atoms can be linked together. Also there are different ways in how the molecules can be arranged to make larger structures.
concept_name: physical difference
headings: Allotropes of carbon
categories: Carbon