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standardization of NaoH
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Do reactors produce plutonium?
Yes, nuclear fission reactors produce plutonium. 92238U + 01N --> 92239U (Uranium-238 + Neutron = Uranium-239) 92239U --> 93239Np + e- + v-e (Uranium-239 beta decays to Neptunium-239) 93239Np --> 94239 Pu + e- + v-e (Neptunium-239 beta decays to plutonium-239)
What is difference between 1N HCL and 1M HCL?
they both are same as HCl is a monobasic acid.>>>Not exactly. N stands for normal and M stands for mole. Knowing that, read this article to know the difference:http://answers.yahoo.com/question/index?qid=20070625100319AALNjoW
A neutron is denoted by what symbol?
The symbol for neutron is simply n because it is neutral in charge. The symbol for neutron is n with a raised 0. To signify that it's neutral, because 0 is neither positive nor negative.
Is the parent isotope always radioactive In a nuclear equation?
No, the parent in the nuclear equation is not always radioactive. For example, the following reaction shows a neutron capture by 23Na, which is not radioactive. 1123Na + 01n --> 1124Na where 01n is a neutron.
Can you use motul multi atf in 01m VW transmission?
i have Audi 01N and use it
Do reactors produce plutonium?
Yes, nuclear fission reactors produce plutonium. 92238U + 01N --> 92239U (Uranium-238 + Neutron = Uranium-239) 92239U --> 93239Np + e- + v-e (Uranium-239 beta decays to Neptunium-239) 93239Np --> 94239 Pu + e- + v-e (Neptunium-239 beta decays to plutonium-239)
What is difference between 1N HCL and 1M HCL?
they both are same as HCl is a monobasic acid.>>>Not exactly. N stands for normal and M stands for mole. Knowing that, read this article to know the difference:http://answers.yahoo.com/question/index?qid=20070625100319AALNjoW
Is plutonium produced by the fission of uranium?
Plutonium is a completely different chemical element. It has the chemical symbol Pu and the atomic number 94 (meaning there are 94 protons in its nucleus), and all of its isotopes are radioactive. A link is provided to the Wikipedia article on Plutonium.
What were the approximate latitude and longitude of the US before and after the Louisiana purchase?
Latitude, 28(degrees) 56 N to 33(degrees) 01 N.Longitude, 88(degrees) 49 W to 94(degrees) 03 WAfter the Louisiana Purchase :- Latitude 28° 56′ N to 33° 01′ N- Longitude 88° 49′ W to 94° 03′ WSource(s):Both are same since it never shifted
How is plutonium made?
Plutonium is made by the activation of uranium by neutrons. A shaped amount of refined uranium is lowered into an operating nuclear reactor, and the sample is bathed in the neutron flux of the operating reactor. Uranium atoms capture a neutron (via neutron absorption) and transform into plutonium.There are several ways to create plutonium. One is neutron absorption of uranium, followed by two stages of beta decay ...92238U + 01N --> 92239U --> Beta- --> 93239Np --> Beta- --> 94239Pu... leaving out the electrons and the electron antineutrinos.Another way is deuteron bombardment ...92238U + 12D --> 93238Np --> Beta- --> 94238Pu... again, leaving out the electrons and the electron antineutrinos.
A neutron is denoted by what symbol?
The symbol for neutron is simply n because it is neutral in charge. The symbol for neutron is n with a raised 0. To signify that it's neutral, because 0 is neither positive nor negative.
What is Egypt ranges of latitude and longitude?
Latitude: 30°2′NLongitude: 31°13′E The gift of the Nile, as Egypt is popular throughout the world is, as suggested by the name a land of scanty water and rainfall because oflatitude and longitudeattributes which are 30º06 N and 31º25 E. Some cities in Egypt are of the utmost importance and it is increasingly necessary to know their latitude and longitude s. The capital city of Cairo occupies the latitude and longitude positions of 29°52 N and 30°21 E. The city of Alexandria occupies the latitude and longitude of 31°13N and 29°58E, while El Qahira has latitudinal and longitudinal attributes of 30°01N and 31°14E. The entire area of Egypt spans over a total area of 995,450 sq km.
How many distinct 3-digit numbers have a digit sum of 11?
-8
What happens during the fission of uranium?
Fission is a process of the splitting the atom, typically into two daughter atoms, plus a few neutrons. It can be caused when a fissionable atom is struck by a neutron, or, in the case of uranium and some synthetic elements, spontaneously. The actual products of fission are somewhat unpredictable. We can know a few things about what always, or nearly always, happens, however and among these are the following:The sum of the numbers of protons in the daughters is equal to the number in the parent.The sum of the numbers of neutrons in the daughters plus the neutrons emitted is equal to the number of neutrons in the parent.Typically two or three neutrons are emitted.The daughters are each very roughly half the size of the parent.So, a typical equation for a fission reaction of 235U might look like this (the lower number preceding the atomic symbol is the atomic number or number of protons in the atom; the upper number is the atomic mass, which equals the number or protons plus the number of neutrons; and 01n represents a neutron): 92235U --> 3799Rb + 55134Cs + 2 01nNote the upper numbers on both sides of the equations add up (235 = 99 + 134 + 2x1), as do the lower numbers on both sides of the equation (92 = 37 + 55 + 2x0).The equation could just as easily have been slightly different: 92235U --> 3798Rb + 55134Cs + 3 01nor very different: 92235U --> 40105Zr + 52127Te + 3 01nVarious isotopes of uranium can undergo fission, and what is true for one is true for the others. The uranium isotopes have long half lives, 703,800,000 years for 235U, and 4,469,000,000 years for 238U. Since heavier atoms can have a greater proportion of neutrons to protons, the daughter atoms nearly always have too many to be stable, and have very much shorter half lives. They handle this by converting neutrons to protons, ejecting beta particles (high speed electrons) as they do. This, for example, is the decay chain of the 99Rb in the first example equation, with half lives: 3799Rb - 0.050 seconds3899Sr - 0.269 seconds3999Y -- 1.47 seconds4099Zr - 2.10 seconds4199Nb - 15.0 seconds4299Mo - 69.14 hours4399Tc - 211,100 years4499Ru - stablePlease note, however, that different decay chains do not always move from shorter to longer half lives; it is they usual way things go, but it is not inevitable.When spent fuel is removed from the reactor, it needs to cool off in a special storage area for a few years because the shorter lived isotopes are decaying rapidly. Then it can be moved from short term storage to longer term storage.The most abundant medium term decay products of uranium fission, with yield as a percentage of the daughter atoms produced, and half life are as follows: 137Cs .. 6.34% .. 32.23 years90Sr .... 4.51% ... 28.9 years141Sm . 0.53% ... 90 years85Kr .... 0.22% ... 10.78 yearsAnd the most abundant long term decay products are as follows: 135Cs . 6.91% .. 2,300,000 years99Tc .... 6.14% ..... 211,000 years93Zr .... 5.46% .. 1,530,000 years107Pd . 1.25% .. 1,250,000 years129I .... 0.84% ... 1,570,000 years126Sn . 0.11% ..... 230,000 yearsThere are no fission products with half lives between 90 and 211,000 years.
Can nuclear reactions create new elements?
When atoms undergo nuclear fission , the result is always two different atoms very much less massive than the parent. For fusion, the resulting atom or atoms are usually of a different element, but not always.Part of the trick to understanding this is that in these types of reactions, the numbers of protons and neutrons going in has to be the same as the number coming out, though some of the decay reactions other than fission turn a proton into a neutron or the other way around. Another thing to remember is that the number of protons determines the element of an atom.FusionWhen we fuse atoms, we are taking neutrons and protons from the nuclei of the two atoms and putting them into a single daughter atom. A typical example of a fusion reaction is: 12H + 12H --> 23He + 01nIn this reaction, the symbol 12H represents hydrogen (atomic symbol H), with the 2 indicating the number of protons plus the number of neutrons, and 1 being the number of protons; this can be read as hydrogen-2. Similarly, 23He is helium-3, and 01n is a silly way to represent a neutron, but it makes the balancing of the equation obvious.We might imagine that fusion always produces an atom of a new element, but this is not the case. It is possible to fuse two helium atoms to produce a heavier helium atom plus a pair of protons, which are essentially hydrogen atoms. A reaction follows:23He + 23He --> 24He + 11p + 11pSo two atoms of helium are combined to produce one atom of helium plus a couple of particles.FissionAtoms have to be pretty heavy to undergo fission, which is what happens when one atom splits into two atoms. Again, the number of protons is kept the same in fission, as is the number of neutrons. But here, the parent atom has a number of protons, and the daughter atoms combine to have that number of protons. Clearly fission cannot happen without the daughter atoms being entirely different from the parent. An example equation for fission is as follows (but bear in mind that the uranium fission equation can take many different forms with many different results): 92235U --> 3692 Kr + 56140Ba + 2 01nOther types of decayThere are many other types of nuclear decay with a single atom undergoing some sort of change to produce another single atom. In most of them, the daughter atom is of a different element than the parent, but this is not true in all cases. In decay involving producing only a gamma ray, for example, there is only a slight change in the mass of the atom. For example: 99mTc --> 99Tc + gamma
