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How many neutrons lost when uranium-238 decays to thorium-234?
When uranium-238 decays to thorium-234 through alpha decay, it emits an alpha particle which consists of 2 protons and 2 neutrons. Therefore, in this decay process, the nucleus loses 2 neutrons.
What type of radioactive decay resulted in uranium-238 becoming thorium-234 and how do you know?
This is alpha decay.If you notice carefully, uranium has 238 atomic wt. and on decaying becomes thorium with atomic wt. of 234. hence it lost atomic wt. of 4. He, which is released in alpha decay, has atomic no. of 4. Hence, if uranium decayed into Helium and Thorium, it will undergo Alpha Decay
When uranium ejects an alpha particle how many protons does the remaining nucleus have?
The atomic transmutation brought about by beta decay will depend on the type of beta decay. In beta minus decay, a neutron will be converted into a proton, and the nucleus will eject an electron. This makes proton count (and atomic number) increase by one and neutron count decrease by one. In beta plus decay, a proton is converted into a neutron and a positron (anti-electron), and this will make proton count (and atomic number) go down by one and neutron count go up by one. A link can be found below for more information.
Does an ion have neutrons?
No, ions do not have neutrons. Neutrons are neutral particles found in the nucleus of an atom. Ions are atoms or molecules that have gained or lost electrons, resulting in a net positive or negative charge.
Which of these particles are lost in the oxidation process protons neutrons electrons atoms?
Electrons are these particles.
How many neutrons lost when uranium-238 decays to thorium-234?
When uranium-238 decays to thorium-234 through alpha decay, it emits an alpha particle which consists of 2 protons and 2 neutrons. Therefore, in this decay process, the nucleus loses 2 neutrons.
What type of radioactive decay resulted in uranium-238 becoming thorium-234 and how do you know?
This is alpha decay.If you notice carefully, uranium has 238 atomic wt. and on decaying becomes thorium with atomic wt. of 234. hence it lost atomic wt. of 4. He, which is released in alpha decay, has atomic no. of 4. Hence, if uranium decayed into Helium and Thorium, it will undergo Alpha Decay
How many protons and neutrons are lost as U234 decays to Th230?
2 of each in the form of an alpha particle.
What type of radiation is emitted when polonium-212 forms lead-208?
Polonium-212 loses 2 protons and 2 neutrons when it decays to lead-208. These 2 protons and 2 neutrons are lost as a single Helium nucleus. In other words, it is an alpha decay.
What does uranium become when its lost its radioactivity?
Uranium becomes lead
What happens if we lost uranium?
It is difficult to loss uranium today; but if it is lost or stolen should be of course sought !
When uranium ejects an alpha particle how many protons does the remaining nucleus have?
The atomic transmutation brought about by beta decay will depend on the type of beta decay. In beta minus decay, a neutron will be converted into a proton, and the nucleus will eject an electron. This makes proton count (and atomic number) increase by one and neutron count decrease by one. In beta plus decay, a proton is converted into a neutron and a positron (anti-electron), and this will make proton count (and atomic number) go down by one and neutron count go up by one. A link can be found below for more information.
What is it called when uranium turns to lead?
Uranium is radioactive. Which means its nucleus will emitt an alpha particle (two protons and two neutrons) spontaneously. Because the nucleus lost two protons it becomes the element Thorium. Thorium also emitts alpha's and changes to Radium. This process continues; Radium into Radon into Polonium and finally into lead. The final Lead is not radioactive and the process ends. The actual process is a little more complicated because some of these intermediate elements can change by converting a neutron into a proton and emitting an electron (beta radiation), but the basic process is one radioactive element changes into another radioactive element by emitting radiation (alpha's or beta's). The Uranium to Lead Process has a half-life of about 4.5 billion years. Meaning that in 4.5 billion years 1 kilogram of Uranium will have changed to a half kilogram lead and a half kilogram Uranium is still left. This is approximate because there will also be some of those intermediate elements waiting to change.
Was uranium created with the earth and will it run out?
Uranium was created in the early stages of the universe by stellar nucleosynthesis. Uranium cannot be lost from the earth.
Thorium has an average atomic mass of 232.0 and atomic number 90. in the space below draw a square from the periodic table to represent thorium?
Beta radiation is caused by two different reactions: Beta Plus Decay: n -> P+ e(-)+v Where n is a neutron, P is a proton, e(-) is an electron and v is a neutrino (in this case an anti-neutrino) and Beta Minus Decay: P -> n +e(+) +v where e(+) is a positron since atomic number is the number of protons, depending on the decay involved it will change by 1 or -1
Why does uranium become radioactive in a nuclear reactor?
Uranium is already radioactive, it does notbecome radioactive in a reactor. Uranium naturally undergoes alpha decay, emitting alpha particles and transforming to Thorium, another radioactive element. The radioactive decay of these daughter isotopes continues via either alpha or beta decay until a stable isotope of lead is produced.Perhaps what you meant to ask is "Why does Uranium fission in a nuclear reactor?".This is because there are low energy neutrons (aka thermal neutrons) in the reactor that can avoid capture by the plentiful Uranium-238 isotope and fission the rare Uranium-235 isotope. Initially when the reactor is being started these thermal neutrons are provided by a device called a neutron source. When the reactor becomes critical (by the operators gradually removing control rods) it sustains a stable fission neutron chain reaction supplying its own neutrons to keep fissioning at a constant rate. The operators then remove the neutron source, as it is no longer needed. The only problem in keeping this chain reaction going is that Uranium-235 fission emits high energy neutrons (aka fast neutrons) which are readily captured by the plentiful Uranium-238 isotope. This problem is solved by a moderator, a substance that rapidly removes energy from the neutrons (slowing them from fast to thermal speeds) before a significant number can be lost in Uranium-238 neutron capture. Typical moderators are: graphite, water, heavy water, hydrocarbons, etc.Perhaps what you meant to ask is "Why do Uranium fuel rods become more radioactive in a nuclear reactor?".The fuel rods become more radioactive in the reactor than they were originally because of the highly radioactive fission product isotopes produced by the Uranium-235 fission (as well as radioactive isotopes produced by neutron capture by stable elements in the structural parts of the fuel rods). These isotopes are more dangerous than the original Uranium was, because they undergo beta and gamma decay, emitting beta particles and gamma rays both of which are more penetrating than than alpha particles are. Also the longer the fuel rods remain in the reactor the more of these fission products build up in the fuel rods. The good thing is these fission products have much shorter halflifes than the original Uranium: they decay rapidly to stable non-radioactive elements.The original Uranium takes billions of years to decay completely to stable lead. The fission products take from hours to centuries to decay completely to stable isotopes. The slowest to decay is gone in about 250 years. Thus, after the decay period the fuel rods are actually less radioactive than they were originally before being put in the reactor. The reactor "burned up" the Uranium, leaving fission product "ashes" which take a few centuries to "cool" completely.You might ask now "What becomes of the Uranium-238 that captured neutrons during the neutron chain reaction in a nuclear reactor?".It becomes Plutonium, some of which the reactor "burns" just like the Uranium-235 and some builds up in the fuel rods (like the fission products do). This Plutonium could be reprocessed(along with unused Uranium) to make new fuel rods, but if not, with a halfllife of about 25,000 years it will take about 125,000 years in storage to completely decay back to Uranium via alpha decay, which as I said already takes billions of years to decay to stable lead isotopes.
How many neutrons does an mg2 ion have?
An Mg2+ ion is a magnesium ion that has a charge of +2, meaning it has lost 2 electrons. The number of neutrons in an Mg2+ ion is the same as in a regular magnesium atom, which is 12 neutrons.
