Iron Element - Fe

Iron
Iron
Iron Symbol Fe
Iron Atomic Number 26
Iron Atomic Mass 55.85 g.mol -1
Discovered by The Ancients

Chemical Properties Of Iron

Group 8 Melting point 1536 °C
Period 4 Boiling point 2861 °C
Block d Density (g cm−3) 7.8 g.cm-3 at 20°C
Atomic number 26 Relative atomic mass 55.845
State at 20°C Solid Key isotopes 56Fe
Electron configuration [Ar] 3d64s2 CAS number 7439-89-6
ChemSpider ID 22368 ChemSpider is a free chemical structure database

What is iron?

  • Iron is a metal, an element of group VIII of the periodic table. It is a lustrous, ductile, malleable, silver-grey in color. It is the tenth most abundant element in the universe. It is found in a major amount at the core of the Earth in a molten form.

Uses of iron

  • It is used to manufacture steel and also used in civil engineering like reinforced concrete, girders etc.
  • Iron is used to make alloy steels like carbon steels with additives such as nickel, chromium, vanadium, tungsten, and manganese.
  • These are used to make bridges, electricity pylons, bicycle chains, cutting tools and rifle barrels.
  • Cast iron contains 3–5% carbon. It is used for pipes, valves, and pumps.
  • Iron catalysts are used in the Haber process for producing ammonia.
  • Magnets can be made of this metal and its alloys and compounds.

Physical Properties of Iron

  • It rusts in damp air, but not in the dry air.
  • It dissolves readily in dilute acids.
  • At room temperature, this metal is in the form of ferrite or α-form.
  • At 910°C, it changes to γ-iron, which is much softer in nature.
  • It melts at 1536°C and boils at 2861°C.
  • Being a metal is magnetic in nature.

Certain Facts About Iron

  • An average human body contains about 4 grams of this iron in the form of hemoglobin, in the blood.
  • It is the 6th most common element in the universe.
  • There are four known allotropic forms of iron.

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Frequently Asked Questions on Iron Element – Fe

What is the importance of the element iron?

  • It is a building block of steel
  • It helps in transferring oxygen in the blood and
  • It also helps in the nourishment of plants.

What is the atomic number of iron?

Iron is a chemical element with atomic number 26 and symbol Fe. It is a metal that belongs to the periodic table’s first transition series and group 8. It is the most common element on Earth by mass, forming much of the outer and inner core of Earth.

Write the electronic configuration of iron.

[Ar] 3d64s2 . The electronic iron configuration (e.g.) is 1s2 2s2 2p6 3s2 3p6 4s2 3d6, and the form [ Ar ] 4s2 3d6 is abbreviated. Nonetheless, it wasn’t easy to find the reason why it was written as [ Ar ] 3d6 4s2 instead in some periodic table.

What is the boiling point of iron?

The boiling point of iron is 2861 °C. Steel is just the iron component refined to regulate the carbon quantity. Iron melts from the surface at about 1750 ° F (1510 degrees C). Steel also drops at 1370 degrees C.

Why does iron have a high melting point?

It is necessary to overcome the attraction between the metal ions and the dislocated electrons to melt or boil a metal. Such attractive forces are solid, so high melting and boiling points are found in metals.

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