Uranium

An intrauterine range of uranium periodic table is the third element of the actinide series. In this category, electrons take the internal electrochemical examination (5 tests). This is the heaviest element in the elements found in nature. Until recently, this element was considered to be the last element of the sixth interstate group.

Isotopic

The isotopes of uranium and their half-life periods are as follows:

Parallel --- Semi-Life Period --- Free Particle Source

uranium 238 --- 4.51x109 year --- alpha particle --- natural

uranium 235 --- 7.07x109 year --- alpha particle --- natural

uranium 234 --- 2.35x10 years --- alpha particle --- natural

Uranium 239 --- 23 minutes --- Beta particle --- artificial

uranium 237 --- 6.8 days --- Beta particle --- artificial

यूरेनियम 233--- 1.62x10 वर्ष--- ऐल्फा कण--- कृत्रिम

यूरेनियम 232--- 70 वर्ष --- ऐल्फा कण--- कृत्रिम

Uranium 231 --- 4.2 day --- Electron Eclipse --- Artificial

यूरेनियम 230--- 20.8 दिन--- ऐल्फा कण--- कृत्रिम

Uranium 229 --- 58 minutes --- Electron Eclipse --- Artificial

uranium 228 --- 9.3 minutes --- alpha particle --- artificial

Uranium derived from natural sources is present at 238 isotopes at 99.28 percent, 235 isotopes 0.71 percent and 234 isotopes 0.006. History

The uranium element was discovered by Klaproth in 1789 AD, from ore called Pitchball. He named the new element Uranium based on the Uranus planet known few years ago. After 52 years of this discovery, in 1841 CE, Peligat demonstrated that the substance discovered by Claprote prepared Uranium Metals by abstinence by the potassium (K) of uranium tetrachloride.

In 1896, Henry Bequelel discovered the radio activation in uranium. His research has shown that this quality is present in all the uranium compounds and in some other ores. As a result of these inspections, the historic finding of radium from Pitchball Ore was possible. Presence

Uranium extends on the entire surface of the Earth. It is estimated that uranium is approximately 1014 tonnes in the Earth's crust. Thus, its volume will be 4x10 in approximately 1 gram shell. Its volume is low in acidic shell (e.g. granite) and is less in alkaline shell (like basalt). Uranium is also present in seawater, although its volume in seawater is 1 / 2000th of volume present in Shell. Even after spreading in such detail, its only two main ores are known, one Pitchball and the second cornotype. Pitchball is the dark blue black ore, in which uranium oxide (U3 O3) is present. Cornotite is predominantly known as potassium and uranium warrant, (K2 U2 V2O12, 3H2O). The main deposits of Pitchbill ore are in Congo, Africa and Canada. In addition, this ore is found in Czechoslovakia, Australia USA, East Africa, England. Cornotite is found in USA and Australia. Uranium ores have been discovered in Jharkhand, India.

Uranium dissolves by reacting with urine on uranium ore. Subsequently, the reactions of sodium carbonate and other compounds are removed from the impurities. Finally uranium oxide (U3 O3) is formed. Oxygen can be eroded by the carbon in the furnace. Thus, the metal obtained is derived from the neutralization of uranium fluoride. Properties

Uranium is a bright white metal. It indicates U, atomic number 92, atomic weight 238.03, melting point 1,130 ° C, boiling point of approximate 3,500 ° c, density 19.05 gram per cubic cm 0, electrical resistance 32.76x109 mm and crystal structure triple lateral, at room temperature.

Uranium is active ingredient. In full state it can burn in air automatically. Water is dissolved by its hydrogen. It compounds oxygen by 190 ° C, chlorine to 180 ° C, bromine to 210 ° C, iodine to 260 ° C and hydrogen to 250 ° C. Apart from these, uranium reacts with nitrogen, carbon dioxide, carbon monoxide and many gases. By acting with acids, uranium becomes trisycomic and quaternary compounds and hydrogen is released.

Uranium has 5 connectors. Its main connectors are 4 and 6. Its salts make a complex ion with simplicity. Compound

It has the following compounds: Uranium oxide

Five oxides of uranium are known.

If a uranium oxide is compressed to air at 700 ° C heat (U3O3), then it is formed. Uranium nitrate will produce heat dissipation (UO3) at 300 ° C. (UO3) has several crystal modifications. If the scope of 500 ° C (UO3) is removed by hydrogen, then (UO2) will be formed. Uranium nitrate forms all the oxen in the nitric acid of uranium. Uranium hydride

Uranium makes uranium hydroeu (UH3), by heating hydrogen at about 250 ° C. This hydroid gets dissolved on more heat. Uranium hydrate receives powder uranium from the dissolution of high heat. Due to this the uranium powders activated by this hydroid are made. Uranium carbide

Two carbides of uranium are known These are made by carbon and liquid uranium reactions. This can also be caused by reacting at high temperatures of carbon monoxide and uranium metal. Uranium nitride

By reacting with nitrogen, uranium makes several compounds, the simplest of which is uranium mononitride, (UN). Uranium hellyd

Uranium makes many sounds. Its seven fluoride, four chloride, two bromide and two iodide are known. The reaction of other heliodic compounds of uranium, or hydride can be made by the action of halogen acid. Use

Before the Nuclear Energy Era, there was not much use of uranium. It was used in certain types of fibers. Its salts work to color silk. Sodium diurenate has been used to color the porcelain utensils.

Uranium has become a very useful element due to nuclear energy experiments. It has been used in nuclear chain reaction. In this verb, a 235 weight number isotopic has been proven helpful. In this uncontrolled stage, there may be a severe eruption by this action, as it happened in atomic bombs, but comes in controlled form. It works to run some reactor. In some reactors, ordinary uranium (which is 235 isotopes of 0.71 percent) is used, but rich in uranium (enriched uranium) in many reactors. It raises the percentage of 235 isotopes in it. In these actions, uranium nuclei is fissioned by the neutron invasion and neutrons are released, from which the chain runs.

92 Uranium + Neutron → Split Substitutes + Newton + Energy

Together with a neutron reaction on the uranium 238 isotope, a new element is formed by plutonium, PU, ​​in which there are presentable properties of uranium-235.

92 uranium + neuton → 92 uranium → napchithonium → 94 plutonium

U + n → U → Np → Pu

Thus, 238 isotopes can also be converted into energizing substances.

It is also known now that Uranium 238 isotopic can also be contradicted by the invasion of acute nitrons at very high temperatures. This action has been used in many thermuclear bombs nowadays. Uranium in India

Uranium mine in India is still active in (2006) Sagyogora only. In addition, uranium has been found in many other parts of India but mining is not being done at those places. These areas include some areas of Nalgonda district of Andhra Pradesh and some parts of Nagaland where local people oppose uranium mining. Also see them

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