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Molybdenum

Mo

INTRODUCTION

Molybdenum was coin from the Greek word molybdos, meaning lead; the two metals had previously been confused.Its chemical properties is similar to that of chromium.

It is a silvery white, tough, malleable metal.It is dissolved by dilute nitric acid and aqua regia, and is attacked by fused alkalies; it is not attacked by air at ordinary temperatures, but at elevated temperatures.

BASIC INFORMATIONS

  • Atomic Number
  • 42
  • Atomic Mass
  • 95.95
  • Atomic radius
  • 0.129
  • Ionization energy
  • 685
  • Electronic config
  • 2,8,18,13,1
  • Principal Valency
  • +1
  • Density g/cm³
  • 10.28
  • Melting point °C
  • 2623
  • Boiling point °C
  • 4639
  • Type of Element
  • Metal
  • Electronegativity
  • 1.8
  • Element Category
  • Chromium Group
  • Appearance
  • Silvery white solid
  • Block
  • d-block
  • Period
  • 5
  • Group
  • 6
  • No of Isotopes
  • 33
  • Occurrence
  • Combine form
  • Abundance in ppm
  • 1.2
  • Year of Discovery
  • 1778

EXTRACTION

It is obtain by reducing it's oxide

OXIDATION STATES

+6,+5,+4,+3,+2,+1,-1,-2 (Strongly Acidic)

MAJOR SOURCE

Wulfenite and Molybdenite

EXAMPLES OF COMPOUND PRESENT

Molybdenum oxide

ECONOMIC IMPORTANCE

* Its alloy withstands high temperatures and pressures and is very strong, making it useful for structural work, aircraft parts, and forged automobile parts.

* Molybdenum sulfide is used as a lubricant in environments requiring high temperatures.

* Its wire is used in electron tubes, and the metal also serves as electrodes in glass furnaces.

* It is an important trace element in soils, where it contributes to the growth of plants.

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