I have the element Cesium with an element symbol of Cs.
The atomic number of Cesium is 55 with an atomic mass of 132.9054.
Cesium is a liquid at or near room temperature.
Cesium is a metal with a melting point of 28.5 °C (83.3 °F).
The group name for Cesium is Alkali Metal. The Alkali metals include lithium, sodium, potassium, rubidium, cesium, and francium.
Cesium was discovered by Robert Wilhelm Eberhard von Bunsen and Gustav Robert Kirchhoff. It was discovered in 1860.
Cesium is used for photoelectric cells which change sunlight into energy. It is also used for an atomic clock which is the best at keeping time.
Cesium is a silvery-white color. It is shiny, soft and ductile. Cesium has a major reaction with water and it releases hydrogen gasses. Cesium is not regarded as essential to health of plants or animals, nor is it a hazard for them. Ductile means it is able to be drawn out into a thin wire.