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What is the mass number for uranium-239?
The relative atomic mass of the isotope 239U is 239,054 293 299 ± 0,000 002 052 (atomic mass units).
How is uranium-238 converted to plutonium-239?
Uranium-238 is converted to plutonium-239 through a process called nuclear transmutation. This typically involves bombarding uranium-238 with neutrons in a controlled environment, such as a nuclear reactor. The uranium-238 absorbs a neutron and undergoes a series of nuclear reactions, eventually transforming into plutonium-239.
What is Plutonium 239?
* Approx. 115 US $/kg of the unrefined oxide U3O8 (but not for the nuclear grade, which is more expensive) - in July 2011. * The price of plutonium is probably 4 000 US $/g; the price depends on the isotopic composition and purity (nuclear fuel grade, weapons grade).
If Atom A has mass number 239 and atomic number 93 and Atom B has a mass number 239 and atomic number 94 are atoms A and B of the same element and why?
No, atoms A and B are not the same element because they have different atomic numbers. The atomic number, which determines the element, is based on the number of protons in the nucleus. In this case, atom A has 93 protons while atom B has 94 protons, indicating they belong to different elements.
What are fissionable elements?
Any elements (more specifically isotopes of elements) that are capable of undergoing the process of nuclear fission. Only Uranium-235 and Plutonium-238 are fissionable out of the entire periodic table of the elements. Nuclear fission is a special type of radioactive decay that splits the nucleus of an atom, releasing large amounts of energy. Unlike other forms of decay, fission can be controlled and does not occur spontaneously. A slow-moving neutron that hits a nucleus of a fissionable element becomes absorbed by the element making it extremely unstable. (Think of it like throwing a brick at an already unstable brick wall.) The nucleus of the atom collapses, (splits) releasing energy, more neutrons, and 2 new elements. (a.k.a. no more uranium atom)
How many protons and neutrons are in uranium-241?
Uranium is the 92nd element on the periodic table. That means there are 92 protons in 1 uranium atom, no matter which isotope. Protons are constant through an element. Every single atom of Uranium has 92 protons. Neutrons, however change with isotopes. 241 is the number of protons and neutrons together. So subtract 92 from 241 to get the number of neutrons in uranium 241
What is the mass number for uranium-239?
The relative atomic mass of the isotope 239U is 239,054 293 299 ± 0,000 002 052 (atomic mass units).
How many protons and neutrons are in Pu?
94 protons, 94 electrons, and 150 neutrons
Similarties between uranium-235 and plutonium-239 in nuclear reactors?
Uranium 235 and Plutonium 239 are fissile elements, fissionable with thermal neutrons.
How are uranium and plutonium alike?
Plutonium has the same composition as uranium, except for the fact that it contains one more neutron and one more proton. Actually Plutonium-239 has 2 more protons and 2 more neutrons than Uranium-235.
The plutonium isotope with 145 neutrons?
The plutonium isotope with 145 neutrons is plutonium-242 (Pu-242). This isotope has 97 protons (since all plutonium isotopes have 94 protons) and a total atomic mass of approximately 242 atomic mass units.
What element results if four protons and four neutrons are ejected from a plutonium nucleus?
The most common isotope of plutonium is Pu-239. Ejecting four protons and four neutrons would reduce the atomic number from 94 to 90 and the mass number from 239 to 231. Element #90 is Thorium, so the answer would be Thorium-231. However, that is not an actual decay mode for Pu-239. Pu-239 decays by emitting an alpha particle (two protons and two neutrons) to Uranium-235. U-235 can then further decay by emitting another alpha particle to form Th-231.
How many neutrons does a plutonium 239 contain?
Plutonium-239 has 145 neutrons.
A difference between uranium 235 and plutonium 239?
Uranium 235 has 92 protons and electrons, 143 neutrons, atomic mass is cca. 235, is a natural isotope. Plutonium 239 has 94 protons and electrons, 145 neutrons, atomic mass is cca. 239, is an artificial isotope. Plutonium is more toxic than uranium. Also are differences in the types of radiations emmited, half-life and many other chemical and physical properties.
How many neutrons has plutonium?
Plutonium-239 has: 94 protons, 94 electrons, 145 neutrons.For other isotopes the number of neutrons is different.Number of neutrons = Mass number of an isotope - Atomic number of the element
Radiation is one of the long-term effects of a nuclear detonation wich of the fallowing type of radiation is emitted only during detonation?
Mostly Uranium 235, Uranium 238, and Plutonium 239 Also fission fragments. If your talking about any kind of radiation then it would be thermal radiation from the heat blast. When you split the Uranium atom you get 2 Neutrons, 2 protons + 2 fission fragments. 1 of the 2 neutrons will be uranium 235 and the other plutonium 239. the radiation from a nuclear blast will at first be heat. This will be continious until the energy that created it is depleated. Note Uranium 238 is weaker than Uranium 235 and it absorbs neutrons. Uranium 235 has a far greater Neutron density (99.3%) Uranium 238 = (0.7%)
What else other than uranium 239 is the atomic bomb made of?
Not uranium 239, but uranium 235 and plutonium 239.
