[NFT GIVEAWAY] Cesium for your atomic clock - The Periodic Elements NFT
27 Dec 2021 2 minute read 86 comments Robertoit
Cesium is the chemical element of atomic number 55 and its symbol is Cs. This element starts a new period (row) in the Periodic Table: Period 6. It is a silvery-gold alkali metal, soft and ductile, and melts slightly above room temperature. The most...