large/12904/worldswithinworlds_v1-3_1904_librivox_64kb_mp3/worldswithinworlds_01_asimov_64kb_161
large/12904/worldswithinworlds_v1-3_1904_librivox_64kb_mp3/worldswithinworlds_01_asimov_64kb
English
12904
He guessed that water consisted of combinations of 1 atom of hydrogen with 1 atom of oxygen. HE GUESSED THAT WATER CONSISTED OF COMBINATIONS OF ONE ATOM OF HYDROGEN AND ONE ATOM OF OXYGEN
could not be divided into anything smaller, and they were called “atoms” from a Greek word meaning “indivisible”. It was not until 1808, however, that this “atomic theory” was really put on a firm foundation. In that year the English chemist John Dalton (1766-1844) published a book in which he discussed atoms in detail. Every element, he suggested, was made up of its own type of atoms. The atoms of one element were different from the atoms of every other element. The chief difference between the various atoms lay in their mass, or weight.[1] Dalton was the first to try to determine what these masses might be. He could not work out the actual masses in ounces or grams, for atoms were far too tiny to weigh with any of his instruments. He could, however, determine their relative weights; that is, how much more massive one kind of atom might be than another. For instance, he found that a quantity of hydrogen gas invariably combined with eight times its own mass of oxygen gas to form water.  BE DIVIDED INTO ANYTHING SMALLER AND THEY WERE CALLED ATOMS FROM A GREEK WORD MEANING INDIVISIBLE IT WAS NOT UNTIL EIGHTEEN O EIGHT HOWEVER THAT THIS ATOMIC THEORY WAS REALLY PUT ON A FIRM FOUNDATION IN THAT YEAR THE ENGLISH CHEMIST JOHN DALTON SEVENTEEN SIXTY SIX EIGHTEEN FORTY FOUR PUBLISHED A BOOK IN WHICH HE DISCUSSED ADAMS IN DETAIL EVERY ELEMENT HE SUGGESTED WAS MADE UP OF ITS OWN TYPE OF ATOMS THE ATOMS OF ONE ELEMENT WERE DIFFERENT FROM THE ATOMS OF EVERY OTHER ELEMENT THE CHIEF DIFFERENCE BETWEEN THE VARIOUS ATOMS LAY IN THEIR MASS OR WEIGHT DALTON WAS THE FIRST TO TRY TO DETERMINE WHAT THESE MASSES MIGHT BE HE COULD NOT WORK OUT THE ACTUAL MASSES IN OUNCES OR GRAMS FOR ATOMS WERE FAR TOO TINY TO WEIGH WITH ANY OF HIS INSTRUMENTS HE COULD HOWEVER DETERMINE THEIR RELATIVE WEIGHTS THAT IS HOW MUCH MORE MASSIVE ONE KIND OF ATOM MIGHT BE THAN ANOTHER FOR INSTANCE HE FOUND THAT A QUANTITY OF HYDROGEN GAS INVARIABLY COMBINED WITH EIGHT TIMES ITS OWN MASS OF OXYGEN GAS TO FORM WATER
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