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When an atom is stable what is happening with the attractive and repulsive forces in the nucleus?
Inside an atom's nucleus there is a neutron, which has no charge, therefore no attractive or repulsive forces. The proton carries a positive charge, though, and repels the negative charge of the electron particle which exists somewhere outside of the nucleus.I'm yet of the old technology which thinks that protons and electron attract. Of course, that doesn't explain why the electron don't crash into the proton, but that's another story.
What has the least mass - electron neutron proton nucleus?
LEAST mass? That would be photos or neutrinos, which have no mass at all. Where Least is greater than zero? Electrons, probably; an electron is 1/1836th of a proton, I seem to recall. Neutrinos actually have a small nonzero mass, so small it has yet to be determined. No neutrino has a mass of more than a few eV, the electron has a mass of about 0.5MeV.
What is it called when atomic nuclei spontaneously decay?
How the nucleus decays depends on the particular isotope. Some even decay in more than one way. One possibility is called alpha decay. In alpha decay, the nucleus emits an alpha particle (two protons and two neutrons). Another possibility is beta decay, in which one of the nucleons changes from a neutron to a proton or vice versa and the nucleus will throw out a beta particle. A beta particle can be either an electron or a positron. (To conserve lepton number, the nucleus also emits an electron antineutrino or an electron neutrino at the same time.) A third case is electron capture. In this, one of the inner electrons is absorbed by the nucleus, a proton changes to a neutron, and an electron neutrino is thrown off. Heavy nuclides can undergo spontaneous fission, in which the nucleus splits into two smaller daughter particles with mass numbers of roughly 90-100 and 130-140. Often some spare neutrons are also ejected at the same time. Cluster decay is yet another mode, which happens only for nuclei which also decay via alpha decay. It's similar to alpha decay except the emitted particle is not a helium-4 nucleus but a heavier element. It's distinguished from spontaneous fission by the fact in cluster decay, only certain nuclei are emitted and they're always well under 90 amu. Other rare decay modes are possible: proton emission, neutron emission, double proton emission, double beta decay, double electron capture, double positron emission, and electron capture with positron emission. Most of these names should be self-explanatory.
Why doesn't the electron eventually land on the proton in a hydrogen atom since there is electrostatic force attracting the two together?
Great question. Inquiries like this led to quantum mechanics a hundred years ago. The easy way to grasp this is to look at the electron as a wave, not a particle. The electron has only whole wavelengths in stable orbits. So normally the electron can't just lose energy to spiral into the nucleus. Remember that there is no mechanism by which the electron can slowly lose energy, and only the electromagnetic force holds it in orbit. The orbits are often not circular. Another question in this regard is "What is the difference between a positive hydrogen ion (which lost an electron), and a bare proton?" There isn't one.
Can Angstroms be photographed?
No, Angstroms are a unit of measurement used to describe the size of atoms and molecules. They are on the scale of atomic dimensions, which is much too small to be photographed directly. However, scientists use techniques such as electron microscopy to indirectly image structures at this scale.
What fills the space between the atomic nucleus and the electron cloud?
The space between the atomic nucleus and the electron cloud is primarily filled with empty space. This empty space allows for electrons to move about freely and occupy different energy levels within the electron cloud.
Where are the electrons in an atom?
Electrons are located in the electron cloud - the outermost portion of the atom. The electron cloud accounts for about 99% of the space taken up by the atom, yet less than 1% of the mass. A good way of thinking about this is in terms of a football field. Imagine the nucleus of the atom was the size of a blueberry. Place the blueberry in the middle of a football field, and that is the size of the electron cloud in comparison to the nucleus. As you see, the atom is mostly empty space with electrons floating around within. Within the electron cloud, electrons are organized into levels, sublevels, orbitals, and spins. Outermost electrons bond with other atoms. The placement of electrons within an electron cloud determines the stability and chemical properties of an element.
Why are viruses not yet consider living thing?
They don't have a Nucleus.
What is the shape of an atom?
It is generally envisioned that the atom consisting of a dense, small nuclues is made up of spherical protons and neutrons, yet this nucleus is surrounded by electrons constantly in rapid motion, orbiting the nucleus so frequently that it often covers a larger sphere around it. However, since the electrons are constantly moving, they hold no actual shape, so we call this area in which the electron orbits the nucleus the Electron Cloud. For modeling purposes, an atom is often displayed as a simple sphere with no complexions, but no one knows for sure exactly what these atoms look like upclose.
When an atom is stable what is happening with the attractive and repulsive forces in the nucleus?
Inside an atom's nucleus there is a neutron, which has no charge, therefore no attractive or repulsive forces. The proton carries a positive charge, though, and repels the negative charge of the electron particle which exists somewhere outside of the nucleus.I'm yet of the old technology which thinks that protons and electron attract. Of course, that doesn't explain why the electron don't crash into the proton, but that's another story.
Who invented the Electron Cloud Model?
The Electron Cloud Model was proposed by Erwin Schrödinger in 1926 as part of the development of quantum mechanics. It describes electrons not as discrete particles with defined orbits but rather as wave functions that exist in a three-dimensional cloud surrounding the nucleus of an atom.
IPod do not disconnect?
When your iPod is connected to a computer and you have not yet ejected it, it will say do not disconnect on the iPod. Do not disconnect it until you have clicked eject on your computer, or it could have a problem with it.
How does bohrs model differ from todays?
Bohr's atomic model depicts the electron shells and orbitals as being two dimensional, staying the exact same distance away from the nucleus the entire time. Today, we know that electron orbits are three dimensional, and at best can only say where the electron in a given orbital is most likely to be at any given time, except for the f orbitals, as no one really knows for sure what those look like yet.
Why the existence of neutron is necessary inside the nucleus of an atom?
We don't know yet. Science is still looking for answers. All we do know is that it isn't necessarily important. Hydrogen's most common isotope contains no neutrons: only 1 proton and 1 orbiting electron.
What has the least mass - electron neutron proton nucleus?
LEAST mass? That would be photos or neutrinos, which have no mass at all. Where Least is greater than zero? Electrons, probably; an electron is 1/1836th of a proton, I seem to recall. Neutrinos actually have a small nonzero mass, so small it has yet to be determined. No neutrino has a mass of more than a few eV, the electron has a mass of about 0.5MeV.
What is the nucleus color?
purple-the nucleus' color has not yet been "for sure" determined. the nucleus has no specific color because different scientists see it differently through different microscopes. also the color of the nucleus depends on the textbook , book , newspaper or internet page you are looking at.
Does a neutron have electrons in it?
Adding an electron to a proton makes a neutron. The neutron is unstable outside of a nucleus and will usually decay to a proton and an electron. But the neutron is viewed as a particle in its own right, not a combination. At a deeper level, it is a change to the quarks that compose protons or neutrons, though not electrons. And that's probably not the whole story. Quarks have one-third or two-thirds of the electron's charge, and it is very precise. This would suggest something more basic, but no one yet has an accepted theory for what.
