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Rubidium Zach S Period 2 Atomic Symbol: Rb Atomic Number: 37 Atomic Mass: 85 Atomic Period: Period 5 Atomic Group: Group 1 Family: Alkali Metal State At Room Temperature (20ºC): Solid Color: Silvery-White Melting Point (K) : 312.46 K Melting Point (F°) : 102.76°F Melting Point (C°) : 39.31°C Boiling Point (K) : 961 K Boiling Point (F°) : 270°F Boiling Point (C°) : 688°C Discovered By: Robert Bunsen and Gustav Kirchhoff Year Discovered: 1861 Where Discovered: Germany Origin Of Name: From the Latin word for deepest red, ‘rubidus’. How Is It Obtained: Found in mineral lepidolite. Used In: Vacuum Tubes Physical Properties: Soft Metal,density is 1.532 grams per cubic centimeter Chemical Properties: Catches fire when exposed to oxygen, produces hydrogen gas when burned, combines violently with halogens. Diagram of Rubidium Atom Pun I made a drink with Calcium, Rubidium, and Sulfur. I'd drink it, but it's filled with CaRbS. Sources Works Cited Website, Chemistry Explained. "RUBIDIUM." Rubidium, Chemical Element. Chemistry Explained, N/A Jan. n/a. Web. 06 Jan. 2016. Website, Jefferson Lab. "The Element Rubidium." It's Elemental -. Jefferson Lab, N/A Jan. n/a. Web. 06 Jan. 2016. Website, RSC Science. "Rubidium - Element Information, Properties and Uses | Periodic Table." Rubidium Element Information, Properties and Uses. RSC, N/A Jan. n/a. Web. 06 Jan. 2016. Website, Web Elements. "Rubidium: The Essentials." Rubidium»the Essentials [WebElements Periodic Table]. Web Elements, N/A Jan. n/a. Web. 06 Jan. 2016.