Question

write a short note on iron​

Answer 1

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Iron is a hard metal. Its colour is black. It can be melted by heat, and then moulded into different shapes. It is rolled into bars, plates and sheets, and then used for various pur­poses.

Iron is found in many parts of the world, such as Spain, America, India etc. When raised from mines, particles of iron are found to be mixed up with all sorts of things. It is, therefore, called 'ore'. Iron is separated from the impure substances contained in ores, and made fit for extraction in the furnace...

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Answer 2

A ver short note on iron

==> Iron is a chemical element with symbol Fe (from Latin: ferrum) and atomic number 26. It is a metal in the first transition series. It is by mass the most common element on Earth, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust. Its abundance in rocky planets like Earth is due to its abundant production by fusion in high-mass stars, where it is the last element to be produced with release of energy before the violent collapse of a supernova, which scatters the iron into space.

Iron, 26Fe

Pure iron chips with a high purity iron cube

Iron

Appearance

lustrous metallic with a grayish tinge

Standard atomic weight Ar, std(Fe)

55.845(2)[1]

Iron in the periodic table

Hydrogen

Helium

Lithium

Beryllium

Boron

Carbon

Nitrogen

Oxygen

Fluorine

Neon

Sodium

Magnesium

Aluminium

Silicon

Phosphorus

Sulfur

Chlorine

Argon

Potassium

Calcium

Scandium

Titanium

Vanadium

Chromium

Manganese

Iron

Cobalt

Nickel

Copper

Zinc

Gallium

Germanium

Arsenic

Selenium

Bromine

Krypton

Rubidium

Strontium

Yttrium

Zirconium

Niobium

Molybdenum

Technetium

Ruthenium

Rhodium

Palladium

Silver

Cadmium

Indium

Tin

Antimony

Tellurium

Iodine

Xenon

Caesium

Barium

Lanthanum

Cerium

Praseodymium

Neodymium

Promethium

Samarium

Europium

Gadolinium

Terbium

Dysprosium

Holmium

Erbium

Thulium

Ytterbium

Lutetium

Hafnium

Tantalum

Tungsten

Rhenium

Osmium

Iridium

Platinum

Gold

Mercury (element)

Thallium

Lead

Bismuth

Polonium

Astatine

Radon

Francium

Radium

Actinium

Thorium

Protactinium

Uranium

Neptunium

Plutonium

Americium

Curium

Berkelium

Californium

Einsteinium

Fermium

Mendelevium

Nobelium

Lawrencium

Rutherfordium

Dubnium

Seaborgium

Bohrium

Hassium

Meitnerium

Darmstadtium

Roentgenium

Copernicium

Nihonium

Flerovium

Moscovium

Livermorium

Tennessine

Oganesson

–

↑

Fe

↓

Ru

manganese ← iron → cobalt

Atomic number (Z)

26

Group

group 8

Period

period 4

Block

d-block

Element category

transition metal

Electron configuration

[Ar] 3d6 4s2

Electrons per shell

2, 8, 14, 2

Physical properties

Phase at STP

solid

Melting point

1811 K (1538 °C, 2800 °F)

Boiling point

3134 K (2862 °C, 5182 °F)

Density (near r.t.)

7.874 g/cm3

when liquid (at m.p.)

6.98 g/cm3

Heat of fusion

13.81 kJ/mol

Heat of vaporization

340 kJ/mol

Molar heat capacity

25.10 J/(mol·K)