large/12904/worldswithinworlds_v1-3_1904_librivox_64kb_mp3/worldswithinworlds_01_asimov_64kb_42
large/12904/worldswithinworlds_v1-3_1904_librivox_64kb_mp3/worldswithinworlds_01_asimov_64kb
English
12904
Thomson was able to show, indeed, that the electron was much lighter than the hydrogen atom, which was the lightest of all the atoms. THOMPSON WAS ABLE TO SHOW INDEED THAT THE ELECTRON WAS MUCH LIGHTER THAN THE HYDROGEN ATOM WHICH WAS THE LIGHTEST OF ALL THE ATOMS
entually, Stoney’s name for the units of electricity was applied to the particles that carried those units. The cathode rays, in other words, were considered to be made up of streams of electrons and Thomson is usually given credit for having discovered the electron. The extent to which cathode rays curved in the presence of a magnet or electrically charged objects depended on the size of the electric charge on the electrons and on the mass of the electrons. Ordinary atoms could be made to carry an electric charge and by comparing their behavior with those of electrons, some of the properties of electrons could be determined. There were, for instance, good reasons to suppose that the electron carried a charge of the same size as one that a hydrogen atom could be made to carry. The electrons, however, were much easier to pull out of their straight-line path than the charged hydrogen atom was. The conclusion drawn from this was that the electron had much less mass than the hydrogen atom.  HINTED AT EVENTUALLY STONY'S NAME FOR THE UNITS OF ELECTRICITY WAS APPLIED TO THE PARTICLES THAT CARRIED THOSE UNITS THE CATHODE RAYS IN OTHER WORDS WERE CONSIDERED TO BE MADE UP OF STREAMS OF ELECTRONS AND THOMSON IS USUALLY GIVEN A CREDIT FOR HAVING DISCOVERED THE ELECTRON THE EXTENT TO WHICH CATHODE RAYS CURVED IN THE PRESENCE OF A MAGNET OR ELECTRICALLY CHARGED OBJECTS DEPENDED ON THE SIZE OF THE ELECTRIC CHARGE ON THE ELECTRONS AND ON THE MASS OF THE ELECTRONS ORDINARY ATOMS COULD BE MADE TO CARRY AN ELECTRIC CHARGE AND BY COMPARING THEIR BEHAVIOUR WITH THOSE OF ELECTRONS SOME OF THE PROPERTIES OF ELECTRONS COULD BE DETERMINED THERE WERE FOR INSTANCE GOOD REASONS TO SUPPOSE THAT THE ELECTRON CARRIED A CHARGE OF THE SAME SIZE AS ONE THAT A HYDROGEN ATOM COULD BE MADE TO CARRY THE ELECTRONS HOWEVER WERE MUCH EASIER TO PULL OUT OF THEIR STRAIGHT LINE PATH THAN THE CHARGED HYDROGEN ATOM WAS THE CONCLUSION DRAWN FROM THIS WAS THAT THE ELECTRON HAD MUCH LESS MASS THAN THE HYDROGEN ATOM
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