0
Uranium
Uranium is a heavy element with the atomic number 92 and the symbol U. In 1789 it was discovered in the mineral pitchblende by Martin Heinrich Klaproth , who named it after the planet Uranus
586 Questions
Uranium is a member of the actinides (actinoids) group.
Uranium has 3 natural isotopes and 26 artificial isotopes and isomers..
What is uraniums original name?
Uranium was the first name from 1789; the name is derived from the name of the planet Uranus.
Where was uranium first founded?
Uranium was disvovered (as an oxide) in 1789 in Germany by Martin Heinrich Klaproth; but the mineral pitchblende was from Jachimow, now in Czech Republic and from Johanngeorgenstadt, now in Germany.
What happens when you inhale uranium?
Inhaling uranium can lead to health issues such as lung cancer or kidney damage due to the radioactive properties of the element. Immediate symptoms may include coughing, shortness of breath, and chest pain. It is important to seek medical attention if exposed to high levels of uranium through inhalation.
you recover it by digging it up out of the soil orrocks.
Who is the world's first scientist in reporting uranium fission powers sunlight?
M.A.Padmanabha Rao,PhD(AIIMS) is the World's first scientist in reporting 235Uranium fission powers Sunlight in the following paper published in 2013:
Discovery of Self-Sustained 235-U Fission Causing Sunlight by Padmanabha Rao Effect.
The surface of the pure and fresh (non-oxidized) uranium metal is similar to surface of a steel.
What does ultrazole medicine used for?
Ultrazole is a type of medicine that is used to prevent and treat symptoms of stomach ulcers, acid reflux, and gastroesophageal reflux disease (GERD). It works by decreasing the production of acid in the stomach to relieve symptoms such as heartburn, stomach pain, and acid indigestion.
Uranium was discovered (as an oxide) in 1789 by Martin Heinrich Klaproth.
All elements with atomic numbers greater than iron are created in supernova explosions. These have been happening since shortly after the 'big bang' and still happen today. Throughout the universe some uranium is very old and some has just been created. The uranium on earth cannot be older than about 4.5 billion years.
Uranium is nuclear fuel not renewable.
The source of energy is the nuclear fission.
Is Uranium 235 used for production of electricity?
Yes, it is the only naturally occurring Uranium isotope that can be used, in fact it is the only naturally occurring isotope of any element that can be used and occurs in large enough quantities to be practical to use.
What happens when you put a magnet on a radioactive element such as uranium?
The magnet would absorb any radiation and particles emitted by the radioactive element,
just as anything else you might put there would. I'm not up on my nuclear decay, but in the
event that alpha or beta particles were emitted, or any other ones with a net charge, the
presence of the magnet would deflect them somewhat from the direction they would otherwise have taken.
Where is uranium found in Texas?
Uranium mines in Texas are: Kingsville Dome, Alta Mesa, Palangana, Vasquez.
Texas has also facilities to refine uranium.
U-235
How many kilograms of Uranium-238 did the bombs dropped on Hiroshima and Nagasaki each contain?
None. The first atomic bomb was made with enriched uranium. Note: There is a "slight technicality" with this one. Here's the deal. Any time that a small quantity (or a slightly larger quantity) of uranium is found, either in nature or in the physics lab, there will be a tiny bit of plutonium in the sample. Only the tiniest bit, but it will be there. Uranium's isotopes are all unstable, and they will decay by spontaneous fission or alpha emission. Within that decay environment, a few atoms of uranium are transformed into atoms of plutonium. As stated, it's a "technicality" as such, but it's a fact.
How much kg of uranium is required to become critical mass?
There is no single quantity, it depends on many factors some are:
- enrichment level
- presence/absence of moderator
- type of moderator
- presence/absence of reflector
- thickness of reflector
- type of reflector
- presence/absence of absorber
- type of absorber
- has the uranium been compressed beyond standard density
- etc.
For some general order of magnitude values:
- in a typical water moderated reactor, the critical mass of the 3% enriched uranium is usually several tons
- in a typical atomic bomb with a depleted uranium tamper/reflector, the critical mass of the 93.5% enriched uranium is 15 to 20 kg depending mostly on the thickness of the tamper/reflector
What will be uranium prices in 6 month?
The price of uranium between October 2014 and March 2015 fluctuated in the range
36-44 US $/lb U3O8.
What is the concentration of Uranium in sea water?
The concentration of uranium in sea water is approx. 4 micrograms/L.
At this concentration the price of extraction is very prohibitive.
What are the strengths and weaknesses for the uranium properties?
Applications and advantages of uranium
- nuclear fuel for nuclear power reactors 1. Uranium is an alternative to fossil fuels, especially for countries without reserves of coal, petrol, methane.
2. Uranium don't contribute to global warming.
3. Uranium don't release carbon dioxide.
4. In the future uranium can be extracted from the sea water. - explosive for nuclear weapons
- material for armors and projectiles
- catalyst
- additive for glass and ceramics (to obtain beautiful green or yellow colors)
- toner in photography
- mordant for textiles - additive for the preparation of biological samples for electron microscopy
- shielding material (depleted uranium)
- ballast (counter weights)
- and other minor applications Disadvantages of uranium: 1. Uranium is a possible polluting agent of the natural environment.
2. Uranium is a toxic and a radioactive chemical element.
3. Uranium release radium and radon. 4. Radioactive wastes are dangerous and need to be isolated.
Why is uranium less reactive than sodium?
The electronegativity of sodium is 0,93.
The electronegativity of uranium is 1,38.
A lower electronegativity is the meaning of more chemical reactivity.
What is more radioactive than pure uranium?
Many radioactive isotopes are more radioactive than the naturally occurring uranium isotopes:
- All fission product isotopes are more radioactive (e.g. iodine-131, strontium-90)
- Most radioactive isotopes in the uranium --> lead decay chain are more radioactive (e.g. radium, radon, polonium)
- Plutonium is more radioactive
- Tritium is more radioactive
- Carbon-14 is more radioactive
- Artificially produced uranium isotopes are more radioactive (e.g. uranium-233, uranium-236)
- etc.
