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Rubidium
Beginning of essay
The 37th Element
is located between potassium and cesium in the first Group
on the Periodic Table. It's atomic number is 37and its atomic mass is
85.4678. In French and German it is , in Italian and Spanish it is
rubidio.
History and General Facts
Rubidium was discovered spectroscopically in1 ....
Middle of essay
.... Maine. There are 17 known Isotopes of Rubidium. The only 2
naturally-occurring isotopes are Rb85 and Rb87. Rubidium-87 is present to
the extent of 27.85% in natural rubidium. Ordinary rubidium is
sufficiently radioactive to expose a photographic film in 30-60 days.
Rubidium is a soft, silvery white, lightweight, metallic solid. It
is an element of the alkali group and is the second most electropositive
and alkaline element. It can be liquid at ambient temperature, it's
melting point is 39.... |
| Number of words: 930 |
Approximate pages: 4 |
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