| An example of allotropy is carbon, which can exist as diamond, graphite, and amorphous carbon. |
| 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. |
| Elements exhibiting allotropy include tin, carbon, sulfur, phosphorus, and oxygen. |
| Thus carbon occurs as the diamond, and as charcoal and plumbago, and is therefore regarded as a substance subject to allotropy. |
| This would be quite in accordance with the chemical notion of allotropy. |
