cesium

Caesium or cesium[note 1] is a chemical element with symbol Cs and atomic number 55. It is a soft, silvery-gold alkali metal with a melting point of 28 Â°C (82 Â°F), which makes it one of only five elemental metals that are liquid at or near room temperature.[note 2] Caesium is an alkali metal and has physical and chemical properties similar to those of rubidium and potassium. The metal is extremely reactive and pyrophoric, reacting with water even at â116 Â°C (â177 Â°F). It is the least electronegative element having a stable isotope, caesium-133. Caesium is mined mostly from pollucite, while the radioisotopes, especially caesium-137, a fission product, are extracted from waste produced by nuclear reactors.

For more information about cesium check the Wikipedia article here

ZME Science posts about cesium

Great video shows alkali metal reactions with air and water

Thu, Jun 2, 2011

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Here is the video, go watch it (it will rock your world if you don’t know your chemistry – and even if you do, it’s still great to watch). I’ll come back with a short explanation after the video. Alkali metals are a series of metals from Mendeleev’s periodic table; you can find them right [...]

alkali metals, cesium, lithium, potassium

Meet the magnetic superatoms

Wed, Jun 17, 2009

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Virginia Commonwealth University managed to discover what they have called a ‘magnetic superatom‘, a stable cluster of atoms that can ‘impersonate’ various elements from the periodic table, that could be put to use in numerous fields, especially for biomedical purposes and to create molecular devices for the next generation of computer memory.A team from the [...]

atoms, cesium, molecule, vanadium

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