| The difference in the arrangement of space in the atoms that make up the structure of an element is called allotropy. |
| The phenomenon of allotropy is exhibited when an element exists in two or more distinct forms. |
| Before leaving this phase of inorganic chemistry, we may mention other historical examples of allotropy. |
| With the exception of nitrogen, all group V elements show allotropy. |
| This would be quite in accordance with the chemical notion of allotropy. |
| Elements exhibiting allotropy include tin, carbon, sulfur, phosphorus, and oxygen. |
