My CSS / Adsense

Uranium

U

INTRODUCTION

Uranium is a chemically reactive radioactive metallic element that is the major fuel used in nuclear reactors. It is a member of the actinide series in the periodic table. Pure uranium consists of more than 99 percent of the isotope uranium-238.

It displaces hydrogen from mineral acids and from the salt solutions of such metals as mercury, silver, copper, tin, platinum, and gold. When finelly divided, it burns readily in air at 150° to 175°C.

BASIC INFORMATIONS

  • Atomic Number
  • 92
  • Atomic Mass
  • 238.02891
  • Ionic radius
  • 1.025
  • Ionization energy
  • N/A
  • Electronic config
  • 2,8,18,32,21,9,2
  • Principal Valency
  • +2
  • Density g/cm³
  • 19.1
  • Melting point °C
  • 1132.2
  • Boiling point °C
  • 4131
  • Type of Element
  • Metal
  • Electronegativity
  • N/A
  • Element Category
  • Actinide series
  • Appearance
  • Silvery white solid
  • Block
  • f-block
  • Period
  • 9
  • Group
  • 7
  • No of Isotopes
  • 26
  • Occurrence
  • Radioactive
  • Abundance in ppm
  • 2.3
  • Year of Discovery
  • 1789

EXTRACTION

It is obtain by either solvent extraction, or ion exchange, or volatility methods.

OXIDATION STATES

+6,+5,+4,+3,+2,+1 (Weakly basic)

MAJOR SOURCE

Pitchblende, Carnotite

HALF LIFE

Uranium-235 = 710 million years, Uranium-238 = 4.5 billion years

ECONOMIC IMPORTANCE

* Small amounts of uranium is used to produce pale yellow or green coloured glass that fluoresces under Ultra violet light.

* Some uranium oxide is used for colouring ceramics.

* Uranium is widely used in the production of nuclear weapon, and nuclear reactor fuel for powering of Submarine, and generation of electricity..

Developed by successtar (+2347061855688).