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Xenon


Xenon is element number 54 on the periodic table of the elements. It has a
mass of roughly 131 atomic mass units. There are 77 neutrons and 54 protons in
the nucleus of the atom. The symbol for xenon is Xe and it belongs to the
family of elements called the noble gases. It is called a noble gas because the
valance shell of one atom contains a full shell. Xenon is one of the most
stable elements on the table. The 54 electrons are arranged, so that there are
2 in the 1st shell, 8 in the 2nd, 18 in the 3rd, 18 in the 4th and lastly 8 in
the 5th shell. The melting and boiling points of xenon are extremely low. They
are -111°C and -107°C respectively.
Xenon and most of the other noble gases were discovered by Sir William
Ramsey and M.W. Travers from England in 1898. The two scientists discovered it
mistakenly while experimenting with crude krypton, another noble gas. They were
separating the elements in the crude krypton through a process called fractional......

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Approximate Pages: 3 (250 words per double-spaced page)

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