Atomic Number Of Fe



Chemical properties of iron - Health effects of iron - Environmental effects of iron

  1. Atomic Number Of Ferric
  2. Atomic Number Of Freon
  3. Atomic Number Equal To 2
  4. Atomic Number Of Br
  5. Atomic Number Of Fe2o3

Atomic number

26

Atomic mass

55.85 g.mol -1

Electronegativity according to Pauling

1.8

Density

7.8 g.cm-3 at 20°C

Melting point

1536 °C

Boiling point

2861 °C

Vanderwaalsradius

0.126 nm

Ionic radius

0.076 nm (+2) ; 0.064 nm (+3)

Isotopes

8

Electronic shell

[ Ar ] 3d6 4s2

Energy of first ionisation

761 kJ.mol -1

Energy of second ionisation

1556.5 kJ.mol -1

Energy of third ionisation

2951 kJ.mol -1

Standard potential

- o.44 V (Fe2+/ Fe ) ; 0.77 V ( Fe3+/ Fe2+ )

Discovered by

The ancients

Atomic Number Of Ferric

Iron, isotope of mass 56 Please visit the Iron element page for information specific to the chemical element of the periodic table. Iron does not have 8 valence electrons, it only has 2, here's why. Oxidation state depends upon the valence electrons and valence electrons are the electrons present in the outer most shell of an atom For Fe, n=4, N shell, In Iron the electronic configuration of Fe = 1s2 2s2 2p6 3s2 3p6 4s2 3d6.

  • Atomic Number of Iron. Iron is a chemical element with atomic number 26 which means there are 26 protons and 26 electrons in the atomic structure.The chemical symbol for Iron is Fe.
  • Fe I Ground State 1s 2 2s 2 2p 6 3s 2 3p 6 3d 6 4s 2 5 D 4 Ionization energy 63737 cm-1 (7.9024 eV) Ref. SC85 Fe II Ground State 1s 2 2s 2 2p 6 3s 2 3p 6 3d 6 4s 6 D 9 / 2 Ionization energy 130563 cm-1 (16.1877 eV) Ref. SC85-1 (16.1877 eV) Ref.
  • The atomic mass is useful in chemistry when it is paired with the mole concept: the atomic mass of an element, measured in amu, is the same as the mass in grams of one mole of an element. Thus, since the atomic mass of iron is 55.847 amu, one mole of iron atoms would weigh 55.847 grams.


Iron

Iron is a lustrous, ductile, malleable, silver-gray metal (group VIII of the periodic table). It is known to exist in four distinct crystalline forms. Iron rusts in damp air, but not in dry air. It dissolves readily in dilute acids. Iron is chemically active and forms two major series of chemical compounds, the bivalent iron (II), or ferrous, compounds and the trivalent iron (III), or ferric, compounds.

Applications

Iron is the most used of all the metals, including 95 % of all the metal tonnage produced worldwide. Thanks to the combination of low cost and high strength it is indispensable. Its applications go from food containers to family cars, from scredrivers to washing machines, from cargo ships to paper staples.
Steel is the best known alloy of iron, and some of the forms that iron takes include: pig iron, cast iron, carbon steel, wrought iron, alloy steels, iron oxides.

Iron in the environment

Iron is believed to be the tenth most abundant element in the universe. Iron is also the most abundant (by mass, 34.6%) element making up the Earth; the concentration of iron in the various layers of the Earth ranges from high at the inner core to about 5% in the outer crust. Most of this iron is found in various iron oxides, such as the minerals hematite, magnetite, and taconite. The earth's core is believed to consist largely of a metallic iron-nickel alloy.
Iron is essential to almost living things, from micro-organisms to humans.
World production of new iron is over 500 million tonnes a year, and recycled iron add other 300 million tonnes. Economically workable reserves of iron ores exceed 100 billion tonnes. The main mining areas are China, Brazil, Australia, Russia and Ukraine, with sizeable amounts mined in the USA, Canada, Venezuela, Sweeden and India.

Health effects of iron

Iron can be found in meat, whole meal products, potatoes and vegetables. The human body absorbs iron in animal products faster than iron in plant products. Iron is an essential part of hemoglobin; the red colouring agent of the blood that transports oxygen through our bodies.

Iron may cause conjunctivitis, choroiditis, and retinitis if it contacts and remains in the tissues. Chronic inhalation of excessive concentrations of iron oxide fumes or dusts may result in development of a benign pneumoconiosis, called siderosis, which is observable as an x-ray change. No physical impairment of lung function has been associated with siderosis. Inhalation of excessive concentrations of iron oxide may enhance the risk of lung cancer development in workers exposed to pulmonary carcinogens. LD50 (oral, rat) =30 gm/kg. (LD50: Lethal dose 50. Single dose of a substance that causes the death of 50% of an animal population from exposure to the substance by any route other than inhalation. Usually expressed as milligrams or grams of material per kilogram of animal weight (mg/kg or g/kg).)

A more common problem for humans is iron deficency, which leads to anaemia. A man needs an average daily intake pf 7 mg of iron and a woman 11 mg; a normal diet will generally provided all that is needed.


Environmental effects of iron

Iron (III)-O-arsenite, pentahydrate may be hazardous to the environment; special attention should be given to plants, air and water. It is strongly advised not to let the chemical enter into the environment because it persists in the environment.

Read more on iron in water
Back to the periodic table of elements.


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Atomic Number of Iron is 26.

Chemical symbol for Iron is Fe. Number of protons in Iron is 26. Atomic weight of Iron is 55.845 u or g/mol. Melting point of Iron is 1535 °C and its the boiling point is 2750 °C.

» Boiling Point» Melting Point» Abundant» State at STP» Discovery Year

About Iron

This chemical element is quite abundant, and it is a shiny metal of light silvery color, known for its ability to get rusty as a result of exposure to air and humidity. It is a key metal and it's estimated that up to 90 per cent of industrial metals are iron. It is a non-toxic element essential for all living things, and iron is one of the most abundant elements on our planet too (it is believed that the core of our planet is formed mainly of iron and two other chemical elements). Iron is the basic element for producing steel, which is, in turn, the key material for construction, manufacturing, and other industries. Stainless steel and its alloys with other metals are among the strongest and the toughest alloys, used extensively for producing a large variety of goods, from appliances to bicycles, from cutting tools to jewellery. Iron is also used in chemical industry, as well as an element for producing magnets.

Uses of Iron

Iron, the most-used and cheapest metallic element with the symbol Fe, is mainly used in the manufacture of steel. It is used in medical and industrial applications as well as in machine tools, automobiles, buildings, pipes, magnets, etc. Ferrous oxide is used as a pigment for glasses, in cosmetics and tattoo inks. Ferric oxide is used for polishing metallic jewelry and treating itchiness. This compound is also preferred in cosmetics. Some iron compounds are used as reducing agent or coagulant, as well as in manufacturing inks, pesticides, and fertilizers. Iron alloys with other elements such as chromium, nickels, vanadium, and manganese.

Iron is also important as a metaphor throughout history, and it plays a role in mythology too.

Compounds with Iron

  • FeO: Ferrous oxide
  • Fe2O3: Iron(III) oxide
  • FeSO4: Ferrous sulfate
  • Fe2(SO4)3: Iron(III) sulfate
  • FeCl2: Ferrous chloride
  • FeCl3: Ferric chloride
  • Fe3O4: Iron(II,III) oxide

Properties of Iron Element

Atomic Number (Z)26
Atomic SymbolFe
Group8
Period4
Atomic Weight55.845 u
Density7.874 g/cm3
Melting Point (K)1811 K
Melting Point (℃)1535 °C
Boiling Point (K)3134 K
Boiling Point (℃)2750 °C
Heat Capacity0.449 J/g · K
Abundance56300 mg/kg
State at STPSolid
OccurrencePrimordial
DescriptionTransition metal
Electronegativity (Pauling) χ1.83
Ionization Energy (eV)7.9024
Atomic Radius140pm
Covalent Radius125pm
Valence Electrons2
Year of Discoveryprehistoric
Discovererunknown

What is the Boiling Point of Iron?

Iron boiling point is 2750 °C. Boiling point of Iron in Kelvin is 3134 K.

What is the Melting Point of Iron?

Iron melting point is 1535 °C. Melting point of Iron in Kelvin is 1811 K.

Atomic Number Of Freon

How Abundant is Iron?

Atomic

Abundant value of Iron is 56300 mg/kg.

What is the State of Iron at Standard Temperature and Pressure (STP)?

Atomic Number Equal To 2

State of Iron is Solid at standard temperature and pressure at 0℃ and one atmosphere pressure.

When was Iron Discovered?

Atomic Number Of Br

Iron was discovered in prehistoric.

Atomic

Atomic Number Of Fe2o3