1. Terbium By: Rachel Goldstein 65 Tb 158.9254 Terbium

2. Properties and Uses Melting Point: 1360.0 °C Melting Point: 1360.0 °C Boiling Point: 3041.0 °C Boiling Point: 3041.0 °C Density @ 293 K: 8.27 g/cm3 Density @ 293 K: 8.27 g/cm3 Color: silvery white Color: silvery white Thermal conductivity: 11.1 J/m-sec-deg Thermal conductivity: 11.1 J/m-sec-deg Electrical conductivity: 8.8 1/mohm-cm Electrical conductivity: 8.8 1/mohm-cm Characteristics: soft Characteristics: soft Uses: in color TV's Uses: some types used in laser materials Uses: added to calcium fluoride to alter its properties Uses: in high temperature fuel cells Uses: a component in some alloys Uses: in making CDs

3. Facts Discovered by a Swedish man named Carl Mosander Named after a Swedish village called Ytterby One of the “rare earth” elements [nos. 57-71] Used to be thought of as rare Found in the Earth’s crust, but not a lot in one place Can’t be mined

4. A Song About Terbium [to the tune of Rudolph the Red-Nosed Reindeer] Terbium, the rare earth metal [metal] It is used in our TVs It makes them so much brighter [brighter] It is really quite handy Terbium, the silver white metal [metal] It is used in our CDs It’s a component in alloys [alloys] It’ll make your life easy

5. Sources/Bibliography http://www.answers.com/topic/rare-earth- element http://www.answers.com/topic/rare-earth- element http://www.answers.com/topic/rare-earth- element http://www.answers.com/topic/rare-earth- element http://www.chemicalelements.com/index.html http://www.chemicalelements.com/index.html http://www.chemicool.com/elements/terbium. html http://www.chemicool.com/elements/terbium. html http://www.chemicool.com/elements/terbium. html http://www.chemicool.com/elements/terbium. html http://www.infoplease.com/periodictable.php? group=D http://www.infoplease.com/periodictable.php? group=D http://www.webelements.com/webelements/el ements/text/Tb/key.html http://www.webelements.com/webelements/el ements/text/Tb/key.html