Why electrons are revolving around nucleus?
Electrons are necessary to balance the electric charge of the protons in the nucleus. They revolve because the wouldn't stay there if they didn't. The centrifugal force prevents them from falling into the nucleus.
3 people found this useful
Orbitals, or shells. There are probably other names out there, butthose are the most common. "Shell" is being taught in schools.
electron revolve around the nucleus because it balance the charge of proton of present in the nucleus
The nucleus and the electron both revolve around a common center of charge. The only atom with equal charge in both places is hydrogen. Every atom heavier than hydrogen has mo…re charge in the nucleus than there is on an electron. By the time you get to uranium, there is more than 90 times as much charge in the nucleus as there is on an electron, so the common center of charge is many times farther from each electron than it is from the nucleus.. Also, each nuclear particle ... each proton and neutron ... is almost 2000 times more massive than an electron, and the same argument applies to the center of mass in the case of orbits governed by gravitational force, such as the solar system. But in the atom, the electrical forces completely dominate over the gravitational forces (by something like 10 40 .)
Never Electrons do not revolve around the atomic nucleus. Classical physics breaks down at this level, and even if it didnt, we would not be able to observe such behavior, …as any device used for observing would have to use electromagnetic radiation (light, xrays, etc), which would alter the position and/or velocity of the electron, per the uncertainty principle. The math is very complex, and beyond me, but an electrons position around a nucleus can be described as a standing wave, with degrees of probability assigned to each point around the nucleus. the different electrons each tend to occur in a probability region that allows them to sort of fit together with each other, like a jigsaw. interestingly, the probability field extends to infinity, such that in theory an electron associated with an atom in my body may exist in your body, or anywhere in the universe, at any given moment. This, however, is very rare, with an electron existing closer to another atom than its associate one probably only a few times in all of the history of the universe. (i dont have the numbers in front of me, so i could be way off, but you get the idea)
the way you look that direction is correct..it is only one model to explain..
It is not the revolution of electrons, but it is simply the ratio of protons and electrons. electrons are positive ions and protons are negative. So, logically, if there is a …higher number of electrons than there is protons, the entire atom becomes positive, and vise versa.
Answer #1: An electron held within a bound state together with the nucleus ofan atom possesses a certain amount of kinetic energy in its lowestenergy state (ground state) wh…ich allows it to exist. Without thisenergy, it would not have its usual fermion-likecharacteristics...and would cease to behave like an electron. Theground-state energy also gives it a particular wavefunction, whichdetermines the probability "cloud" in which you can find it aroundthe nucleus of an atom. Debunking the Bohr model (except for theenergy levels [shells] that it describes), quantum mechanics hasproven that one cannot determine both the position and momentum ofa particle (the Heisenberg Uncertainty Principle). So, we use thisprobability cloud, defined by the electron's wavefunction at aparticular energy level, to determine the shapes of "orbitals" inwhich we can find an electron around the nucleus of an atom. As theelectron absorbs certain quantities of energy (from photons), thiswavefunction changes shape to one of greater frequency and/oramplitude...matching the increase in energy. This, in turn, changesthe shape/size of the orbitals in which we can expect to find theelectron. The fundamental "modes" in which we find different levelsof electrons are usually called principal quantum levels or"shells". All-in-all, the "energy" that gives the electron isparticular "cloud" shape (wavefunction) around the nucleus isexactly that...energy...also called "quanta" or "photons" (whichare the force carriers -- bosons -- of the electromagnetic force). ==== Answer2: The electron energy to orbit around the nucleus comes from theMomentum Energy, cmV = cP, the so-called Dark Energy. The electronsmotion creates momentum mv and vector energy cmV. The Atomic energy is W = -vh'/r + cP = [-vh'/r,cP]. This isQuaternion Energy the sum of a scalar/Potential energy -vh'/r and avector energy cP. The Force is F= XW = [d/dr,DEL][-vh'/r,cP] F = [vp/r -cDEL.P, cdP/dr + vp/r 1R + cDELxP] The orbit motion is cDELxP, the Curl of the Momentum energy, cP. The Divergence of the Momentum Energy cDEL.P = -cp/r cos(P) is thecentrifugal force, that prevents the electron from falling into thenucleus, and stabilizing the orbit, vp/r = cp/r cos(P). The Momentum energy cP is the dominant energy in the atom, W = -vp+ cP. ====== Answer #3: If you want to tear an electron away from itsatom, you need to provide some energy to do it ... rub the balloon, shine ultraviolet light atmetal, supply electrical energy, etc. What does this tell you ? If you need to provide energy to free an electron from an atom, that means that sometime way back, when the atom formed, free electrons lost energy when they became bound to the atom. From that point forward, we're all familiar with the concept thatit doesn't take a continuous supply of additional energy to stay in orbit ... like the moon, the planets, and the TV satellites. Granted, it's a bit morecomplicated than that when the orbiting bodies are electrically charged, but the basicfact remains ... when a free electron falls into orbit in an atom, it loses some of the energy that it had when it was still free, and it doesn't need anyadditional energy unless it wants to leave the atom. Much like marriage, if you will.
Here a centripetal force provided by electrostatic force of attraction acts on the electron towards the centre of orbit but motion is along the tangent to the circular orbit a…t ecah point. As force and displacement are in mutually perpendicular directions at each point, the work done is zero. E V SHAKKEER HUSSAIN
there are electrostatic force of attraction between proton and electron.due to this force electron always revolves around the nucleus in circular orbit
From fundamental physics, we know that electrons are in definedorbits around the nucleus of the Atom. These orbits vary in theirradial distance from the center nucleus of the …atom. The furtheraway, the longer the path length the electron has to travel aroundthe nucleus and vice versa. From "De Broglie" wavelength theory, weknow that all particles have a wavelength associated with them,"lambda", which equals planks constant "h" divided by theparticle's mass, "m" and velocity "v", i.e. lambda = h/mv. Theelectron has a velocity as it orbits the nucleus in the atom. Ifyou were to use this velocity and calculate the electron's DeBroglie wavelength, you would discover that the distance it travelsin one orbit around the nucleus will exactly equal some multiple ofits De Broglie wavelength. Due to this, it can not radiate. What anice design, for if it were not so, the electron would radiate,lose energy, and collapse into the nucleus.
No energy is required for this. Energy is only involved for a change in the energy level - like when the electron goes to a higher energy level.
Neutrons and protons make up the nucleus; therefore, they cannot revolve around the nucleus. Electrons, on the other hand, are on orbitals surrounding the nucleus. The number …of orbitals and the number of electrons per orbital depend on the placement of the element on the periodic table, the atomic mass, the atomic number, etc. A maximum of eight electrons can be on one orbital.
Who told you so: turning an atom upside down will make an anti-clockwise revolution in to a clockwise and vice verse!
The amount of experimental data relating to the relative location of protons, neutrons, and electrons in an atom is so vast that it would be difficult to know where to start. … It is known that protons and neutrons attract each other by means of the strong nuclear force; without this attraction it would be impossible to have any atom with more than one proton in the nucleus, since protons repel each other. This requires neutrons to be in the nucleus, with the protons, not orbiting the nucleus. When atoms are ionized, we know they lose or gain electrons and not neutrons because they acquire an electric charge. There are thousands of other ways of confirming this.
because electons make an magnatic field makes the attraction of each electorn to other whether they are of same charge but because of magnatic field they perfom as opposite an…d attract each other thats why they easly revolve in nucleus