what would rutherford find if he used electrons in his alpha particle scattering experiment ?
604796
He would have found that the beam disappeared at the foil and it was getting negatively charged.
776531
8 protons, 8 neutrons, 10 electrons
1089354
Whatever its atomic number is, would be the number of electrons. If it's an ion, then add for every negative value and subtract for every positive one.
446643
The movement of an electron from one place to another.
778260
You could also write an alpha particle as:\n\n(4,2)He\n\nand a beta particle as:\n\n(0,-1)e.\n\nThese notations are useful in nuclear reactions.
435999
chemically: electrons\n\nphysically: nucleons and/or protons (alpha, beta or gamma ray for nuclear elements)
568649
Nothing....As he might have seen electron beam passing through easily...May be he might have guessed that atom is empty,
199003
a proton has a weight of approximately 1836.15 electrons
128923
J. J. Thompson used cathode ray tubes to measure the ratio of the electron's charge to its mass or e/m...
420181
no and yes,\nyou cannot "see" it with a big microscope and your eyes since the wavelength of light is larger than an atom. \n\nBUT using a beam of electrons, which have wavelengths smaller than an atom, you can use equipment that can detect the reflected electrons. this is the concept behind an electron microscope, like the previous poster talks about.\nhttp://en.wikipedia.org/wiki/Electron_microscope
153880
before rutherford, the atom was considered to be a homogenous object - kind of blobby and with its mass evenly spread out in space.  the current model of the atom with the mass concentrated in the nucleus at the center was rutherford's creation.  furthermore, rutherford didn't merely theorize the existence of the nucleus, he experimentally verified it.  \n\n(actually there is kind of a neat story to this - rutherford had been forced to take on an undergraduate student, named ernst marsden.  rutherford was investigating the way a thin foil of gold could make a beam of alpha particles spread out and become diffuse.  \n\ndealing with the undergrad was kind of a hassle, so rutherford got him out of his hair by giving him a task to keep the student busy - looking for particles reflected backwards from the foil.  \n\nhe didn't expect marsden to find anything, but was certainly surprised when the young student did, and this discovery of back-scattered radiation was some of the first (and still, damned good) evidence for the existence of the nucleus.)\n\nhe also generated the modern theory of radioactivity, was the first person to cause (by artificial means) a nuclear reaction, experimentally verified the age of the earth, invented a radiation-sensing device that was the precursor to the geiger counter, and even discovered the phenomenon that modern smoke detectors use in their normal operation.  all in all, he was a giant in the annals of physics.
644768
If you see He written on the product side of a nuclear decay reaction then you can assume that it is alpha particle. Sometimes the alpha symbol is used to denote alpha decay, but for your purpose it will okay to assume that they are the same.
945388
density,volume,weight,number of electron and proton.
916464
He didn't actually do the experiment, he supervised it.  It happened in 1909, and you can read all about it here:\n\nhttp://en.wikipedia.org/wiki/Geiger-Marsden_experiment
663822
Among the important early researchers in X-rays were Professor Ivan Pului, Sir William Crookes, Johann Wilhelm Hittorf, Eugen Goldstein, Heinrich Hertz, Philipp Lenard, Hermann von Helmholtz, Nikola Tesla, Thomas Edison, Charles Glover Barkla, Max von Laue, and Wilhelm Conrad Röntgen.\n\nPhysicist Johann Hittorf (1824 - 1914) observed tubes with energy rays extending from a negative electrode. These rays produced a fluorescence when they hit the glass walls of the tubes. In 1876 the effect was named "cathode rays" by Eugen Goldstein. Later, English physicist William Crookes investigated the effects of energy discharges on rare gases, and constructed what is called the Crookes tube. It is a glass vacuum cylinder, containing electrodes for discharges of a high voltage electric current. He found, when he placed unexposed photographic plates near the tube, that some of them were flawed by shadows, though he did not investigate this effect.\n\nTesla\nIn April 1887, Nikola Tesla began to investigate X-rays using high voltages and vacuum tubes of his own design, as well as Crookes tubes. From his technical publications, it is indicated that he invented and developed a special single-electrode X-ray tube, which differed from other X-ray tubes in having no target electrode. He stated these facts in his 1897 X-ray lecture before the New York Academy of Sciences.\n\nThe principle behind Tesla's device is nowadays called the Bremsstrahlung process, in which a high-energy secondary X-ray emission is produced when charged particles (such as electrons) pass through matter. By 1892, Tesla performed several such experiments, but he did not categorize the emissions as what were later called X-rays, instead generalizing the phenomenon as radiant energy. He did not publicly declare his findings nor did he make them widely known. His subsequent X-ray experimentation by vacuum high field emissions led him to alert the scientific community to the biological hazards associated with X-ray exposure.\n\nHertz\nIn 1892, Heinrich Hertz began experimenting and demonstrated that cathode rays could penetrate very thin metal foil (such as aluminium). Philipp Lenard, a student of Heinrich Hertz, further researched this effect. He developed a version of the cathode tube and studied the penetration by X-rays of various materials. Philipp Lenard, though, did not realize that he was producing X-rays. Hermann von Helmholtz formulated mathematical equations for X-rays. He postulated a dispersion theory before Röntgen made his discovery and announcement. It was formed on the basis of the electromagnetic theory of light (Wiedmann's Annalen, Vol. XLVIII). However, he did not work with actual X-rays.\n\nRöntgen\nOn November 8, 1895, Wilhelm Conrad Röntgen, a German scientist, began observing and further documenting X-rays while experimenting with vacuum tubes. Röntgen, on December 28, 1895, wrote a preliminary report "On a new kind of ray: A preliminary communication". He submitted it to the Würzburg's Physical-Medical Society journal. This was the first formal and public recognition of the categorization of X-rays. Röntgen referred to the radiation as "X", to indicate that it was an unknown type of radiation. The name stuck, although (over Röntgen's great objections), many of his colleagues suggested calling them Röntgen rays. They are still referred to as such in many languages, where available see the list of titles for versions of this article in other languages. Röntgen received the first Nobel Prize in Physics for his discovery.\n\nRöntgen was working on a primitive cathode ray generator that was projected through a glass vacuum tube. Suddenly he noticed a faint green light against the wall. The odd thing he had noticed, was that the light from the cathode ray generator was traveling through a bunch of the materials in its way (paper,wood, and books). He then started to put various objects in front of the ge
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With modern chemistry and quantum physics knowledge, we know 104 elements. \n\nAn element is defined by proton count, which in turn determines the number of electrons in orbit. Hence we know we aren't missing any elements in between, all numbers between 1 and 104 are known.\n\nThis leaves elements with proton counts of 105 or greater. The greatest difficulty in identifying these is that they are extremely unstable. The observer needs to be lucky and skilled to observe one of these superheavy elements before it decays.\n\nEven more so since these elements are produced by colliding heavy ions at high speed, creating lots of  energy at the collision. Capturing such an element and identifying its mass charge ration in a mass spectrometer or getting spectroscopical data that can be fitted to the theoretical energies one would expect is hard under these circumstances.
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Hmmm...alpha rays are helium nuclei (two protons and two neutrons, all tightly bound) and gamma rays are photons of very high energy. \n\nYou can't control the the output from anything radioactive, so I guess you'll have to crank up your particle accelerator.\n\nAdded:\nDrat! Useless Troll has a better answer!