Uranium
Beginning of paper
was discovered in the 1700's in the coal mines of bohemia and
Jachlovikna. 's atomic number is 92, its Symbol is U and the atomic mass
of is 238.0289. Miners called it Pechblende meaning, Pechblende, from
the German words pech, which means either pitch or bad luck, and blende, meaning
mineral Ura ....
Middle of paper
.... using thermal reaction of tetrachloride with potassium. Later in 1870,
an important fact was established: uranium is the last and heaviest element
present on earth. This was demonstrated by Dimitri Mendeleev in his famous
perodical classification of the elements by chemical properties and increasing
atomic mass. Experimentation with uranium lead to many discoversies such as the
X-ray by Wilhelm Röntgen, on November 8, 1895.
Wilhelm Röntgen, was awarded the first Nobel prize in ....
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