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The property possessed by certain elements to exist in two or more distinct forms that are chemically identical but have different physical properties. In the case of iron the crystal structure has one form at room temperature and another at high temperature. When heated above 910oC the atomic structure changes from body centered cubic to face centered cubic but reverts again when cooled. The allotropy of iron modifies the solubility of carbon, and it is because of this that steel can be hardened.

It has only 2 forms of allotropy not 4

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13y ago
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12y ago

Actually there are six isotopes of iron. Two of them are disintegrating ie radioactive

Fe -54, Fe-56, Fe-57 and Fe-58 are non radioactive where as Fe-55 and Fe-59 are radioactive in nature.

Fe-56 is the maximum which is available by 91.66%

Fe-54 by 5.82 percentage

Fe-57 by 2.19% and Fe-58 by 0.33 percentage.

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11y ago

Fe(ii) ferrous and Fe(iii) ferric are two forms of iron.

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Q: What are the four allotropic forms in iron?
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