ATOMIC NUMBER 55 Crossword Clue
ATOMIC NUMBER 55 Crossword Clue
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Crossword Puzzle Infos
The atomic number of Cesium is 55. Cesium is a chemical element in the periodic table that has the symbol Cs and atomic number 55. It is a soft, silvery-gold alkali metal with a melting point of 28.5 °C (83.3 °F), which makes it one of only five elemental metals that are liquid at or near room temperature. Cesium is an important component in many industrial and scientific applications.