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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
What are isotopes and list the isotopes for uranium?
Any given element has a specific number of protons, but the number of neutrons varies; an isotope has a specified number of nucleons (protons plus neutrons). Hydrogen 1 has no neutrons, hydrogen 2 (also known as deuterium) has one neutron, hydrogen 3 (or tritium) has two neutrons.
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No.IsotopeRelative atomic mass 1.217U217,024 368 791 ± 0,000 093 262 2.218U 218,023 535 671 ± 0,000 032 763 3.219U219,024 919 160 ± 0,000 060 946 4.*220U220,024 723# ± 0,000 215# 5.221U221,026 399# ± 0,000 110# 6.222U222,026 086# ± 0,000 108# 7.223U223,027 738 600 ± 0,000 076 347 8.224U224,027 604 778 ± 0,000 027 176 9.225U225,029 390 717 ± 0,000 012 42810.226U226,029 338 702 ± 0,000 013 99911.227U227,031 156 367 ± 0,000 018 10412.228U228,031 374 006 ± 0,000 016 05113.229U229,033 505 939 ± 0,000 006 39614.230U230,033 939 784 ± 0,000 005 11015.231U231,036 293 704 ± 0,000 003 24216.232U232,037 156 152 ± 0,000 002 36517.233U233,039 635 207 ± 0,000 002 90418. **234U234,040 952 088 ± 0,000 001 960
(natural isotope)19. **235U235,043 929 918 ± 0,000 001 957
(natural isotope)20. 235mU "21.236U236,045 568 006 ± 0,000 001 96022.237U237,048 730 184 ± 0,000 002 01923. **238U238,050 788 247 ± 0,000 002 044
(natural isotope)24. 238m1U " 25. 238m2U "26.239U239,054 293 299 ± 0,000 002 05227.240U240,056 591 988 ± 0,000 005 53328.241U241,060 330# ± 0,000 320#29.242U242,062 931# ± 0,000 215#30. ***243U243,067 36 (not surely identified)31. ***244U244,069 95 (not surely identified)
Is uranium a compound or a mixture?
Uranium is a metallic element. It is a pure element and nether a compound nor a mixture. Uranium has the symbol U and number 92 on the periodic table. It is used by the military to make anti armour piercing munitions. It is also used in nuclear power stations. Uranium is an element. Its atomic symbol is U, atomic number is 92, and it has an atomic mass of 238.0 In nuclear reactors, however, only certain isotopes are used which are not found naturally. The uranium found naturally must be "enriched."
How do depleted uranium shells work?
Depleted uranium shells are used in armor-piercing ammunition due to their high density and hardness. When the shell strikes a target, the kinetic energy causes deformation and fragmentation of the depleted uranium, which then ignites on impact due to the high temperature generated, increasing the armor-piercing capability. Additionally, the radioactive properties of depleted uranium help in self-sharpening the penetrator, enhancing its ability to penetrate armored targets.
Is snakeroot used as medicine?
Yes, snakeroot is used in herbal medicine for various purposes. It is commonly used to treat fevers, diarrhea, and as a diuretic. However, it's important to consult with a healthcare provider before using snakeroot for medicinal purposes.
What is the mass of a cubic meter of uranium in grams at 4 deg C?
The density of uranium at 4°C is approximately 19,050 kg/m^3. To convert this to grams per cubic meter, we multiply by 1000 to get 19,050,000 g/m^3. So, the mass of a cubic meter of uranium at 4°C is 19,050,000 grams.
How many atoms are in uranium?
1 Uranium = 1 atom.
U238 maintains 92 protons, 142 protons and 92 electrons.
How does uranium get in your body?
Uranium in drinking water is generally in the range of 2-10 micrograms/liter (depending of the region). No problems in these cases. Drinking waters with greater concentrations of uranium are harmful on long therm (internal irradiation with alpha particles and toxicity).
The chemical elements (excepting hydrogen and helium, possible also beryllium and lithium and of course the tranuranium elements) are formed by stellar nucleosynthesis followed by helium fusion.
What is the half life of uranium 238?
The half-life of uranium-238 is about 4.5 billion years. This means that it takes 4.5 billion years for half of a sample of uranium-238 to decay into thorium-234.
Yes, uranium is a metal. It is a heavy, silvery-white, radioactive metal that is part of the actinide series. Uranium is used in nuclear reactors for power generation and in nuclear weapons.
Which country produces most wines?
Italy is the number one producer of wine in the world, second is France, Spain is third, then the U.S and fifth is Argentina.
What is Uranium's Natural State?
Uranium is usually found in nature in the form of uranium ore, which is a combination of uranium, oxygen, and other elements. It can take the form of minerals such as uraninite, coffinite, and carnotite.
Green salt is made of a combination of salt, herbs (such as basil, parsley, tarragon, and chervil), and sometimes other ingredients like garlic or lemon zest. The color comes from the addition of these green herbs to the salt mixture.
What is the origin of the name Uranus?
William Herschel was going to name the planet Georgium Sidu (George's Star). But Johann Elert Bode decided to name it Uranus the Latinized version of the greek god of the sky Ouranus. He argued for it to be named after the father of Saturn. Finally it was switched from Georgium Sidus to Uranus.
Uranus comes from the name of the mythological Greek god of the sky.
Plutonium is produced in operating nuclear reactors. Uranium is exposed to the neutron flux within the reactor and this is how we generally synthesize this heavy metal.
The fact that plutonium can be used for nuclear weapons places limits on those who wish to acquire plutonium. In addition to its use as material for weapons, it is radioactive and toxic. Plutonium is purchased from a few national suppliers, and there are extremely strict limits on who can buy it and how much a buyer can get.
What is the power produced by splitting uranium atoms to release their energy called?
The power produced by splitting uranium atoms to release energy is called nuclear power. This process is known as nuclear fission, where the nucleus of a uranium atom is split into smaller nuclei, releasing a large amount of energy in the form of heat.
Uranium is formed through the process of supernovae, where heavy elements are created by nuclear reactions in the hot, dense cores of dying stars. These heavy elements are then scattered into space when the star explodes, eventually forming into uranium-rich mineral deposits on Earth through geological processes.
How is RDX used as a medicine?
The discovery of RDX dates from 1898 when Georg Friedrich Henning obtained a German patent (patent No. 104280) for its manufacture, by nitrating hexamethylenetetramine.[2] In this patent, its properties as an explosive were at length described, as well as its possible use as a medical compound mentioned. Research and development were not published further until G. C. V. Herz obtained a British patent in 1921 and a U.S. patent in 1922, for its manufacture by nitrating hexamethylenetetramine.[2] Later in the 1920s RDX was produced by the direct nitration of hexamine. RDX was used by both sides in World War II.
That is a challenging question. Energy in the martial arts is often referred to as chi, referring to the internal energies that are believed to be inherit in all human beings.
Combining this energy with physical strength creates power. For the young, the power of the muscles is enough to succeed in many situations. With learning and experience, energy can assist in the creation of power, allowing older and lighter individuals to easily over power others.
An alternative answer
No.
Power is simply a rate, the rate at which one form of energy is converted into another, or the rate of heat transfer. As energy is measured in joules, power is measured in joules per second which, in SI, is given a special name, the watt.
Energy, on the other hand, occurs in many forms, including electrical. All forms of energy, including electrical, is measured in joules.
It is energy, not power. that you pay for, when your electricity utility charges you for 'using electricity'. As the joule is a very small unit, utilities traditionally use a special unit called a kilowatt hour (kW.h) to measure that energy although there is no reason why they shouldn't use a kilojoule or megajoule instead.
For more information see the answer to the Related question shown below.
Does talcum powder cause cancer?
There is conflicting evidence regarding the link between talcum powder and cancer. Some studies suggest a possible association between talcum powder use in the genital area and an increased risk of ovarian cancer, while others have not found a clear connection. It is advised to minimize the use of talcum powder in sensitive areas until more conclusive evidence is available.
How is chymotrypsin used in medicine?
It is not a painkiller.
It is a kind of enzyme that is produced in the pancreas and and aids in our digestion.
As a medicine it has a various applications:
1) A digestive aid
2) An anti-inflammatory
3) To break down mucous (this is my personal experience; my son got bronchitis in China and they had him inhale it to break down his clogged lungs)
I have read that there are a number of other uses, but from what I understand these are the primary ones.
Why can ordinary uranium not be used to fuel a reactor cooled by ordinary water?
Because "ordinary" uranium is mostly 238U, which won't fission and create a chain like its lighter cousin 235U will. When critical mass is achieved with the 235U isotope of uranium, fission will occur spontaneously. Or with a significantly enriched uranium fuel (one where the natural concentration of 235U has been increased a bunch so the fuel has a much higher percentage of this isotope), fission and a chain reaction is also possible. But with just natural uranium, a big pile of it will just sit there. It won't fission and create a chain reaction. Note that 238U is radioactive and decays over time because it is unstable, but it has a long half-life. Also, the fact that it's unstable (radioactive) doesn't mean it's fissile. It isn't.
What is happening with the price of uranium?
The price of uranium has been relatively stable in recent years due to oversupply in the market and decreased demand for nuclear power. However, there is potential for an increase in price in the future as more countries focus on carbon-free energy sources, which could drive up demand for uranium.
Are uranium isotopes chemically different?
No. All Uranium isotopes are called Uranium because they have 92 protons. The different isotopes (233, 235, 238, etc) all have 92 protons but have different numbers of neutrons in the nucleus. The chemical characteristics of an atom are determined by the number of protons in the nucleus which controls the number of electrons it takes to balance the atom and thus the chemical valence of the atom.
When you get down to it, that is the reason why enrichment of Uranium is such a difficult task since there is only a three neutron difference in weight between fissionable U235 and non-fissionable U238 and no difference in chemical properties.
