Chapter 18
Tools of Ridiculous Precision
Joe Hamby
Synopsis of Chapter 18
Platinum (Pt)
Mass:195.085 amu
Period: 6
Group: 10
Electron Configuration: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d9 6s1
Classification: Transition Metal
Krypton (Kr)
Mass: 83.798 amu
Period: 4
Group: 18
Electron Configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
Classification: Noble Gas
Cesium (Cs)
Mass: 132.905 amu
Period: 6
Group: 1
Electron Configuration: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 6s1
Classification: Alkali Metal
Uranium (U)
Mass: 238.029 amu
Period: 7
Group: none
Electron Configuration: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f3 6d1 7s2
Classification: Actinide
Samarium (Sm)
Mass: 150.362 amu
Period: 6
Group: none
Electron Configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f6 6s2
Classification: Lanthanide
Chromium (Cr)
Mass: 51.996 amu
Period: 4
Group: 6
Electron Configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d4
Classification: Transition Metal
Fermium (Fm)
Mass: 257 amu
Period: 7
Group: none
Electron Configuration: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f12 6d0 7s2
Classification: Actinide
Magnesium (Mg)
Mass: 24.305 amu
Period: 3
Group: 2
Electron Configuration: 1s2 2s2 2p6 3s2
Classification: Alkaline Earth Metal
Summary of Chapter 18
Work Cited
Platinum. (n.d.). Retrieved January 15, 2016, from https://www.mineralseducationcoalition.org/minerals/platinum
Pappas, S. (2014, October 21). Facts About Krypton. Retrieved January 15, 2016, from http://www.livescience.com/32076-krypton.html
The Element Krypton. (n.d.). Retrieved January 15, 2016, from http://education.jlab.org/itselemental/ele036.html
The Element Cesium. (n.d.). Retrieved January 15, 2016, from http://education.jlab.org/itselemental/ele055.html
Uranium Quick Facts. (n.d.). Retrieved January 15, 2016, from http://web.ead.anl.gov/uranium/guide/facts/
The Element Uranium. (n.d.). Retrieved January 15, 2016, from http://education.jlab.org/itselemental/ele092.html
The Element Samarium. (n.d.). Retrieved January 15, 2016, from http://education.jlab.org/itselemental/ele062.html
Staff, B. (2013, July 12). Facts About Samarium. Retrieved January 15, 2016, from http://www.livescience.com/38162-samarium.html
Chromium. (n.d.). Retrieved January 15, 2016, from http://www.lookchem.com/Periodic-Table/Chromium/
Fermium Element Facts. (n.d.). Retrieved January 15, 2016, from http://www.chemicool.com/elements/fermium.html
Magnesium - Element information, properties and uses | Periodic Table. (n.d.). Retrieved January 15, 2016, from http://www.rsc.org/periodic-table/element/12/magnesium