26 Fe Iron 55.845 u

Iron

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Period
4
Group
8
Block
d-block
Phase (STP)
Solid

Iron is the most widely used metal on Earth and the main component of steel. It is essential for oxygen transport in blood as part of hemoglobin.

Appearance: Lustrous metallic with grayish tinge

Physical Properties

Atomic Mass 55.845 u
Density 7.874 g/cm³
Melting Point 1537.8 °C
Boiling Point 2860.8 °C
Phase at STP Solid
Atomic Radius 156.0 pm

Electronic Properties

Electronegativity 1.83
Ionization Energy 762.5 eV
Electron Affinity 15.7 eV
Valence Electrons 8

Electron Configuration

Configuration [Ar] 3d⁶ 4s²

Electron Shell Configuration

Iron electron shell configuration Fe 2e⁻ 8e⁻ 14e⁻ 2e⁻

Position in Periodic Table

Iron position in the periodic table Fe

Discovery

Discovered by: Ancient

Compounds Containing Iron

More Transition Metal

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Frequently Asked Questions

What is Iron?
Iron (Fe) is a chemical element with atomic number 26. It is a solid at standard temperature and pressure, classified as a transition metal.
What are the key properties of Iron?
Iron has an atomic mass of 55.845 u, density of 7.874 g/cm³, melting point of 1537.8°C, boiling point of 2860.8°C.
What is the electron configuration of Iron?
The electron configuration of Iron is [Ar] 3d6 4s2. It is in the d-block of the periodic table.
Who discovered Iron?
Iron was discovered by Ancient.
What is the electronegativity of Iron?
Iron has an electronegativity of 1.83 on the Pauling scale.