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The uranium-235 decay series begins with the emission of an alpha particle If the daughter decays by beta emission what is the resulting nuclide?
Uranium-235 will not beta decay first. If you google "Chart of Nuclides" you can follow the entire decay chain yourself using each isotope's most likely decay type.
Where does uranium 235 come from?
Uranium 235 is a natural isotope of uranium (the concentration is approx. 0,7 %); uranium 235 is separated from the other uranium isotopes by different methods (centrifugation, gaseous diffusion;also on small scale by laser, mass spectrometric, ion exchange, etc.).
What is the noble gas notation of uranium?
The noble gas notation for uranium is [Rn] 5f3 6d1 7s2. Uranium has 92 electrons, and the notation represents the arrangement of electrons using the nearest noble gas element, radon (Rn), as a starting point.
How do you express an element in Isotope Notation?
look here: http://chiralpublishing.com/Bishop_Isotope_Notation.htm If you are using mastering chemistry make sure you are using the correct insert. It should not look like a division problem (no line between the numbers).
What form of uranium is used in nuclear reactors?
Natural uranium consists of mainly U238 with about 0.7 percent U235, which is the fissile one, so enrichment is to raise the proportion of U235, which can be done by diffusion or by centrifuging, because of the slight difference in density, using uranium hexafluoride which is gaseous.
The uranium-235 decay series begins with the emission of an alpha particle If the daughter decays by beta emission what is the resulting nuclide?
Uranium-235 will not beta decay first. If you google "Chart of Nuclides" you can follow the entire decay chain yourself using each isotope's most likely decay type.
What is the electron configuration using noble gas notation of uranium?
The electron configuration of uranium is (short): [Rn]5f36d17s2.
Where does uranium 235 come from?
Uranium 235 is a natural isotope of uranium (the concentration is approx. 0,7 %); uranium 235 is separated from the other uranium isotopes by different methods (centrifugation, gaseous diffusion;also on small scale by laser, mass spectrometric, ion exchange, etc.).
What is the noble gas notation of uranium?
The noble gas notation for uranium is [Rn] 5f3 6d1 7s2. Uranium has 92 electrons, and the notation represents the arrangement of electrons using the nearest noble gas element, radon (Rn), as a starting point.
Why is it necessary to enrich the uranium before manufacturing the fuel pellets?
Natural uranium is only 0.72% fissile uranium-235 isotope. This is only fissionable when using heavy water as the moderator to slow the fission neutrons. With any other moderator you need 3% to 5% uranium-235 isotope. For unmoderated fast neutron reactors like breeders you need 20% to 95% uranium-235 isotope.
What is the difference between using uranium for power or bombs?
In power reactors the fuel is uranium enriched slightly to about 4 percent U235 (the fissile isotope), whereas for a bomb you need the U235 as high as possible, in the high 90's I believe.
What is the activity of uranium in 1 gram of uranyl nitrate?
The activity of uranium in 1 gram of uranyl nitrate can be calculated using its specific activity, which is the radioactivity per unit mass of a material. The specific activity of uranium can be determined based on the type of uranium isotope present in the uranyl nitrate compound.
How do you express an element in Isotope Notation?
look here: http://chiralpublishing.com/Bishop_Isotope_Notation.htm If you are using mastering chemistry make sure you are using the correct insert. It should not look like a division problem (no line between the numbers).
Used as an explosive ingredient in nuclear weapons?
Uranium-235 is used as the fissile material in nuclear weapons. When a uranium-235 atom undergoes fission, it releases a large amount of energy, which can create a nuclear explosion. The critical mass required for a nuclear chain reaction to occur is achieved by compressing uranium-235 using conventional explosives.
What do scientists have to do with the uranium before using in a nuclear bomb?
To use natural uranium in a bomb either of 2 things must be done first, both are expensive and require large infrastructure investment to do them:Enrich the uranium from 0.72% uranium-235 (natural) to 93.5% uranium-235 (Oralloy or HEU).Process the uranium to turn some of the uranium-238 to plutonium-239 in a reactor then chemicallly separate the plutonium from the rest of the irradiated material chemically.In WW2 the US did step 1 at Oak Ridge, TN using a gigantic gaseous diffusion enrichment plant and an electromagnetic separation plant; and step 2 at Hanford, WA using several graphite moderated reactors and large chemical separation plants called "canyons".
What does uranium become when it decays?
If we use uranium-238 as our starter isotope, what happens is that a nuclear decay event happens (in this case an alpha decay) and the U-238 transforms into a daughter isotope thorium (Th-234). The half-life of this transition is 4.5 billion years. Thorium-234 then undergoes a decay. And the process continues until a stable isotope is created as the last daughter of a decay chain. Note that there will be different half lives for the transition events, and the modes of decay will vary depending on what daughter is now the parent in the next decay event. Use the link below to see all the steps. The chart will show the whole chain including the half-life of isotope undergoing decay, the decay mode, and the daughter. Follow along using the keys and the process will reveal itself.
What is U235?
2 different isotopes of uranium. isotope= element with same number of electrons, same number of protons, different numbers of neutrons. U235 has 143 neutrons and 92 protons U238 has 146 neurtons and 92 protons
