why does an electron revolve around a proton even when both of them attract each other?

Question

if it centripital force explain wht is i
t

Answer 1

in the old model of the atom Bohr suggested that electron revolves around a proton(only in the case of hydrogen in general it revolves around the nucleus) this was explained as the centripetal force cancels out the coulombic force and hence the electron stays in the orbit
the later models like the quantum theory says there are no orbits only orbitals or regoins in space where the probability of finding the electron is maximum and there is no concept of a trajectory or a well defined path.

Answer 2

This is basically a Physics question. Just look at the moon revolving around the earth and there is gravitational force of attraction of the earth on the moon.

Should the moon stops circling the earth, it will fall towards the earth. Similarly, electrons must continue to revolve around the positively charged nucleus.

Answer 3

There are several answers already. But leaving aside all other arguments and assuming the model is a simple revolution of one around the other, we can equally well say that the proton revolves around the electron!

But for a general model applicable to all atoms, it is convenient to think of the electrons revolving around the nucleus - for one there is only one nucleus, and many electrons. It is easier to use a model where the electrons are making different revolutions around a single nucleus, rather than a single nucleus doing different kinds of revolutions around many atoms.

Answer 4

It may be because in universe there are many other atoms and all react with each other thus for e.g. if we take two atoms the electron of the first atom will attract the nucleus and the second atom's proton will atract the first one's electrons as well as its own electrons and because of this it results in going no where.

Answer 5

Even though chemists talk about "electron orbitals" in atoms, electrons aren't actually "revolving" around the nucleus. They just have stable quantum position configurations about the nucleus, and it's not physically meaningful to speak of an electron trajectory around the nucleus, nor to speak of "centripetal force" in this case.

Answer 6

it is so because the charge on electron and proton is equal, i.e., the amount of negative charge is equal to the amount of positive charge. thus, electron revolves around the nucleus containing protons and neutrons without falling on the nucleus.

Answer 7

there is no answer to 'why'. the fact that it does not happen shows that classical theory is not the definitive answer. therefore a new theory had to be developed to describe atoms, and thus gave rise to quantum mechanics. but just like newtons laws, the foundation of quantum mechanics (the schroedinger equation) must be accepted without proof, on the basis that it is a good description of reality.

Answer 8

the electrostatic and te centripetal forces balance each other:
mv2/r=kze2/r2
k:constant
z:atomic number
r:radius of the circle
this gives the electron zero acceleration and it revolves