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Iron - Wikipedia
Iron - Wikiwand
Facts about iron - Live Science
Iron | Element, Occurrence, Uses, Properties, & Compounds
Iron - Simple English Wikipedia, the free encyclopedia
Isotopes of iron - Wikipedia
Chemistry of Iron - Chemistry LibreTexts
Iron | The Nutrition Source - Harvard T.H. Chan School of Public …
Iron - Element information, properties and uses | Periodic Table
Iron Element Facts - ThoughtCo