It would have taken scientists longer to discover protons. A+
Nucleus.
A beam of alpha particles shot through a thin thin thin gold foil will occasionally have a few coming close to the nucleus of a gold atom - and as alpha particles have the same charge as the nucleus there is a repulsive force, which forces the particle from its original course. To keep a graduate student busy (I believe it was Marsden) Rutherford asked him to investigate if there was any particles that got deflect through an angle larger than 90'. (A preposterous notion) An to his great surprise there was.
He found that the atom was made up of mostly empty space.
the nucleus is positively charged because it bounces right off of the gold foil
Rutherford's Experiment In this expt, Alpha particles (Double positive charged helium atom) were bombarded on a thin gold foil. Observation:- 1) Most of the rays passed straight through it without any deflection...(Answer to ur question) 2) Some rays were deflected through an small angle giving the sense of presence of Electrones 3) 1 out of 20000 rays was was deflected right back through the same path ( Nucleus )
It would have taken scientists longer to discover protons. -- Suppose Rutherford had not seen any alpha particles deflected back from the gold foil. How would this most likely affected scientific understanding of the structure of an atom?
It would have taken scientists longer to discover protons. A+
Nucleus.
ernest Rutherford
Most of the particles went through the foil, but some were deflected
Rutherford by bombarding gold foil with positively charged particles and noting that some particles were widely deflected.
Rutherford by bombarding gold foil with positively charged particles and noting that some particles were widely deflected.
Rutherford conducted an experiment in which Alpha particles were fired at a gold nucleus. Most of the particles passed through unaffected. However, some were deflected by a small amount whilst an even smaller number of the particles were deflected completely. This led to the conclusion that the atom has an extremely small, central, positively charged nucleus. As both the positive alpha particle and the positive nucleus repel each other by electrostatic forces. The fact that only a small amount of particles are deflected shows that the nucleus is only a tiny central part of the atom.
some of alpha particles were deflected through an angle of 90 degree
The experimental evidence led Rutherford to conclude that an atom is mostly empty space because most of the particles weren't deflected off of the gold foil in his experiment.
Ernest Futher Ford
To do the Rutherford Experiment, you have to shoot alpha particles at gold foil to and see where the particles pass through and where they do not. This will give you a general idea of what Rutherford did to discover the nucleus of an atom. However, alpha particles are very hard to come upon, as they are the nucleus of Carbon. Rutherford knew that alpha particles are about 7000 times more massive than electrons and are positively charged and the charge is twice the magnitude of the charge of electrons.when Rutherford directed a beam of alpha particles at a thin gold foil,he found that almost all particles passed through it without deflecting.A very small were deflected at an angle, however, and a few actually bounded back toward the particle source.