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What nuclear decay processes would form a daughter nucleus with an atomic number larger than the parent nucleus?
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What is the difference between a nuclear decay from a chemical reaction?
Nuclear decay involves the contents of the atomic nucleus, the protons and neutrons. Chemical reactions involve the electrons.
What are examples of nuclear changes in mass?
Changes in nuclear mass can happen when, say, radioactive decay occurs and a nucleus loses mass. When an unstable atomic nucleus "adjusts" to a new state, it dumps a particle or particles, and energy, and its mass decreases. Certainly nuclear fission will cause a dramatic reduction in nuclear mass, but this is the actual "breaking up" of a nucleus into smaller nuclei called fission fragments. Perhaps an example will help. The element radon is an inert gas, but it has no stable isotopes. It's most stable isotope, 222Rn, appears as a decay product of radium; it's a radioactive daughter. It turns out that 222Rn decays by alpha emission, and that means that two neutrons and two protons are kicked out of the nucleus. This will produce the radioactive daughter product polonium-218. It is possible for a nucleus to absorb a particle and gain mass. Frequently this will cause nuclear instability (if it doesn't actually initiate fission) and create a radionuclide, which is unstable and will eventually decay. But something like, say, neutron absorption (neutron capture) will result in an atomic nuclei with a greater mass than the original atomic nucleus that absorbed that neutron. It is of note that fusion knits smaller nuclei or particles together to create a larger nucleus, but this may not necessarily be considered a "simple increase" of mass in a nucleus, though the resultant nucleus will be heavier than any constituent nucuei or particles. You may want an example. If we stick some uranium-238 into an operating nuclear reactor, the 238U will absorb a neutron to become 239U, which is heavier by one neutron that the atomic nucleus that absorbed that neutron. (The 239U is unstable and decays in a couple of steps to make 239Pu, which is used as the fissile material in most nuclear bombs and as a fuel in some nuclear reactors.) Use the links below to related articles posted by our friends at Wikipedia, where knowledge is free.
How does nuclear decay affect the atomic number and mass number of a nucleus that changes after undergoing decay?
Beta+ decay and electron capture causes the atomic number to drop by one. Beta- causes the the atomic number to rise by one.Proton emission causes the atomic and mass number to drop by one.Neutron emission causes the mass number to drop by one.Alpha decay causes the atomic number to drop by two and the mass number to drop by four.
What is 'Atomkraft' when translated from German to English?
"Atomic power" is an English equivalent of the German word Atomkraft. The feminine singular noun translates literally as "atomic energy" or "atomic strength" and sometimes as "nuclear power." The pronunciation will be "a-TOM-kraft" in Hanoverian German.
What is the term for a symbolic method of expressing the composition of an atomic nucleus?
The term is nuclear notation or nuclear symbol. It is a shorthand way to represent the composition of an atomic nucleus, indicating the chemical element symbol, mass number, and atomic number of a particular nucleus.
What is the relationship between the atomic number of an element and its effective nuclear charge, specifically in the case of oxygen?
The atomic number of an element is the number of protons in its nucleus, which determines its effective nuclear charge. In the case of oxygen, which has an atomic number of 8, the effective nuclear charge is the attraction felt by the outermost electrons towards the nucleus, and it increases as the atomic number increases.
What element has a nuclear symbol of c?
The element with the nuclear symbol C is carbon. Its atomic number is 6, meaning it has 6 protons in its nucleus. Carbon is a nonmetallic element that is essential for life and has multiple isotopes.
Which element has six protons in its atomic nucleus?
Carbon is the element which has 6 protons in the nucleus.
How is the nuclear charge determined?
The nuclear charge is determined by the number of protons in an atom's nucleus. It is equal to the atomic number of the element, which is unique for each element on the periodic table. The nuclear charge plays a significant role in determining the chemical properties of an element.
What is an element's atomic number?
An element's atomic number is the # of protons in its nucleus.
What does the atomic nucleus contains?
The atomic nucleus contains protons and neutrons, which are held together by strong nuclear forces. The number of protons in the nucleus determines the element, while the combination of protons and neutrons determines the isotope of that element. Additionally, the nucleus is surrounded by a cloud of electrons that orbit around it.
What is the name of the process in which the nucleus of an atom of one element is changed in to the nucleus of an atom of a different element?
Normally called transmutation. This was what the old alchemists were trying to achieve, but they didn't know about nuclear reactions.
What is induced nuclear fission?
We might think of induced nuclear fission as a fission reaction that occurs when a neutron is captured by, say, a uranium-235 atom and that atomic nucleus undergoes fission as a result. Most all of the fission events within a nuclear reactor or nuclear weapon are induced. Given this, we might then compare that fission event to a spontaneous fission event wherein the atomic nucleus of a uranium-235 atom spontaneously undergoes fission without having captured a neutron.
How is the atomic bomb nuclear?
It gets its energy from the atomic nucleus.
What does it mean if an element is radioacitive?
If an element is radioactive, it refers to the stability of their atomic nucleus. If that atomic nucleus is not stable, it is considered radioactive.
When the nuclide astatine-218 undergoes alpha decay?
When astatine-218 undergoes alpha decay, it emits a helium nucleus (alpha particle) and transforms into the new element, polonium-214. This process reduces the atomic number of the nucleus by 2 and the mass number by 4.
