No. Binding energy differs from element to element,
No, nuclei in cells are not all the same size. Nuclei can vary in size depending on the type of cell and its function.
To be technically accurate, all four forms of energy, the strong interaction, electromagnetism, the weak interaction, and gravity, are represented in the nuclei of atoms. However, and what this question is probably looking for, is that the strong interaction is, by far, the most powerful of the four. Interestingly, though, electromagnetism rears its effects in nuclei that are greater than atomic number 82 (lead) due to the non-equal distance roll-off curve of the strong interaction versus electromagnetism. This leads to instability2, or what we simply call radioactivity, for the higher numbered nuclides. The strong interaction is also called binding energy, or the nuclear force. When nuclear fission (of heavy nuclides) or fusion (of light nuclides) occurs, there is a reduction in the requirement for binding energy. This delta binding energy is accompanied with a loss of mass1 and this change in binding energy is released to the system as excess energy, heat, radiation, etc. ---------------------------------------------------------------------------------------- 1Again, being technically correct, there is no loss of mass. Mass can neither be created nor destroyed, and the same goes for energy. They can only be moved from one frame of reference to the other. Einstein's mass-energy equivalance equation e = mc2 says it all - mass is energy and energy is mass - so a fission or fusion reaction that results in a "loss of mass/energy" is actually a reaction where the mass is "carried away" in the energy, because they are effectively the same thing. 2In addition to the "competition" between binding energy and electromagnetism, there is the weak interaction, which leads to instability, again radioactivity, with nuclei that do not have the "ideal" ratio of protons and neutrons. The is the primary cause of beta decay, such as for carbon-14.
Iron has the highest binding energy per nucleon among all the elements. This is because iron's nucleus is the most stable in terms of binding energy per nucleon, making it the peak of the curve on the binding energy curve.
The source of atomic energy is the "binding energy" that exists in the nucleus of all atoms. This is the energy that is contained in the union of the protons and neutrons of the nucleus. When the nucleus is split apart, the binding energy is released.
All nuclear reactions involve changes in the structure of atomic nuclei, which can result in the release of a large amount of energy. These reactions are governed by the principles of conservation of mass and conservation of energy. Additionally, nuclear reactions can involve the splitting (fission) or combining (fusion) of atomic nuclei.
are all nuclei the same size( diameter
No, nuclei in cells are not all the same size. Nuclei can vary in size depending on the type of cell and its function.
To be technically accurate, all four forms of energy, the strong interaction, electromagnetism, the weak interaction, and gravity, are represented in the nuclei of atoms. However, and what this question is probably looking for, is that the strong interaction is, by far, the most powerful of the four. Interestingly, though, electromagnetism rears its effects in nuclei that are greater than atomic number 82 (lead) due to the non-equal distance roll-off curve of the strong interaction versus electromagnetism. This leads to instability2, or what we simply call radioactivity, for the higher numbered nuclides. The strong interaction is also called binding energy, or the nuclear force. When nuclear fission (of heavy nuclides) or fusion (of light nuclides) occurs, there is a reduction in the requirement for binding energy. This delta binding energy is accompanied with a loss of mass1 and this change in binding energy is released to the system as excess energy, heat, radiation, etc. ---------------------------------------------------------------------------------------- 1Again, being technically correct, there is no loss of mass. Mass can neither be created nor destroyed, and the same goes for energy. They can only be moved from one frame of reference to the other. Einstein's mass-energy equivalance equation e = mc2 says it all - mass is energy and energy is mass - so a fission or fusion reaction that results in a "loss of mass/energy" is actually a reaction where the mass is "carried away" in the energy, because they are effectively the same thing. 2In addition to the "competition" between binding energy and electromagnetism, there is the weak interaction, which leads to instability, again radioactivity, with nuclei that do not have the "ideal" ratio of protons and neutrons. The is the primary cause of beta decay, such as for carbon-14.
The usual example of the conversion of matter to energy is a nuclear explosion, or the nuclear fusion that takes place in the sun and is the source of the sun's energy. When hydrogen nuclei fuse into helium nuclei, there is a certain amount of mass that is lost; the weight of the helium nuclei is less than that of the hydrogen nuclei (or protons) which produced them. This extra weight is not stored in the form of particles, but in the form of (invisible) binding energy. It exists because there is no binding energy in a hydrogen nucleus, which consists of only one particle, whereas the helium nucleus with two protons and two neutrons has binding energy between all four of those particles (as a result of the strong nuclear force). This can be compared to the energy which results from a falling object. Height is a form of stored gravitational energy, and falling releases that energy. Similarly, when nucleons bind together, that releases potential energy. The quantity of energy is large enough to be easily measured in terms of mass. In reality, all energy is equivalent to some quantity of mass, so an object held high above the ground, which has gravitational potential energy, weighs slightly more than the same object after it falls to the ground and has given up its gravitational potential energy, however, that difference in weight is too small to detect. But all energy has mass, in accordance with Einstein's famous equation for mass-energy equivalence.
Iron has the highest binding energy per nucleon among all the elements. This is because iron's nucleus is the most stable in terms of binding energy per nucleon, making it the peak of the curve on the binding energy curve.
They have the same number of protons in their nuclei.
Nuclear fusion occurs when two nuclei are placed close enough so that residual binding energy overcomes electromagnetism.Binding energy holds (among other things) quarks together to form protons and neutrons. Residual binding energy, or nuclear force, holds protons and neutrons together to form nuclei. Both forms of binding energy are strong enough, within the confines of the nucleus, sort of - see the next paragraph, to overcome the repulsive force of electromagnetism for like charged particles.Both binding energy and electromagnetism are an inverse function of distance. Binding energy has a steeper distance curve, and that complicates things. Within the confines of a single proton or neutron, or within the confines of smaller nuclei (atomic number less than or equal to 82, lead) binding energy wins. At a certain distance, however, electromagnetism wins, causing protons to repel each other.This magic distance is, primarily, what causes radioactivity, although the weak interaction also has a bearing, but that is not part of the question.In order for fusion to occur, you have to remove the electron cloud. This is done by adding energy, often substantial amounts of heat, creating an ionized plasma. You also have to force the nuclei together. This is done with substantial amounts of pressure, in order to overcome electromagnetism.In the stars, this is easy. Gravity does all the work, creating heat and pressure. On Earth, this is hard. We have been successful creating uncontrolled fusion reactions in hydrogen bombs, but we have not been successful creating sustained controlled reactions. We are probably 50 or more years away from being able to do that.
The source of atomic energy is the "binding energy" that exists in the nucleus of all atoms. This is the energy that is contained in the union of the protons and neutrons of the nucleus. When the nucleus is split apart, the binding energy is released.
Not all cells have nuclei. All eukaryotic cells have nuclei and all prokaryotic cells do not.
All atoms of the same kind of matter are similar because they have the same number of protons in their nucleus, giving them the same atomic number. This determines the element to which they belong and establishes their chemical properties. Additionally, atoms of the same element have identical electron configurations in their outermost energy levels.
Photoelectrons do not have the same energy because each electron absorbs a different amount of energy from the incident photons based on the specific interaction between the photon and the electron. This is influenced by factors such as the photon energy, the binding energy of the electron in the material, and the angle of incidence. As a result, photoelectrons exhibit a range of energies rather than a single, uniform energy level.
The nuclei of all atoms of a given element always have the same number of protons. This number is unique to each element and is known as the element's atomic number.