`cesium` Related Article Results

Cesium is a metallic element with atomic number 55 and chemical symbol Cs, belonging to the alkali metals group of the periodic table. It is golden-colored, extremely soft and highly reactive. It is particularly known for its use in atomic clocks. Classification and Basic Properties Cesium is an alkali metal located in group 1A (group 1) of the sixth period of the periodic table. Its electron configuration is [Xe]6s¹, and it tends to readily lose its single valence electron to form +1 ions (Cs⁺)