Fe
Iron is the most widely used metal and the most abundant element on Earth by mass.
Physical Properties
| الكتلة الذرية | 55.845 u |
| الكثافة | 7.874 g/cm³ |
| Melting Point | 1811.0 K |
| نقطة الغليان | 3134.0 K |
| المظهر | Lustrous metallic with grayish tinge |
| State at Room Temp | Solid |
الخواص الكيميائية
| السالبية الكهربائية | 1.83 (Pauling) |
| طاقة التأين الأولى | 762.5 kJ/mol |
| القرب الإلكتروني | 14.6 kJ/mol |
| Oxidation States | +2, +3, +4, +5, +6 |
الخصائص الذرية
| تشكيل الإلكترون | [Ar] 3d6 4s2 |
| نصف قطر الذرة | 126.0 pm |
| نصف قطر التكافؤ | 132.0 pm |
| Van der Waals Radius | 194.0 pm |
اكتشاف
| اكتشفها | Known since antiquity |
| الموقع | Various |
| Named After | Anglo-Saxon 'iren'; symbol Fe from Latin 'ferrum' |
عن Iron
Iron is a lustrous, ductile, malleable, silver-gray metal and the most used of all metals. It forms much of Earth's core. Iron has been used by humans for at least 5,000 years. Hemoglobin uses iron to transport oxygen in blood.
Uses & Applications
Steel production, construction, automobiles, machinery, tools, cast iron cookware, and dietary supplements.
حقيقة مضحكة
Iron is literally in your blood -- hemoglobin uses iron atoms to carry oxygen. The average adult body contains about 4 grams of iron.
النظائر
| Mass Number | الوفرة | نصف العمر | Stable |
| 54 | 0.05845% | - | Yes |
| 56 | 0.91754% | - | Yes |
| 57 | 0.02119% | - | Yes |
| 58 | 0.00282% | - | Yes |
تشكيل الإلكترون
[Ar] 3d6 4s2