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Boiling Point - 3825 C Melting Point - 1768.2 C
 * //Platinum - Pt//**

**Statistics** Density - 21.45 kg Atomic Mass - 195.084 amu Atomic number - 78 Valence Electrons - 6 Cost - $1439.65 per gram
 * 1) of protons - 78
 * 2) of neutrons - 117
 * 3) of electrons - 78

Platinum in pure state

Found by western scientists in 1735. Platinum is found free in nature and in deposits of gold and nickel.

**Electron Configuration of Platinum** 2 electrons in first ring 8 electrons in second ring 18 electrons in third ring



**Orbital Notation** 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d9 6s1

**Chemical and Physical Properties**

**Chemical Properties -** doesn't react normally with air or oxygen Carefully reacts with fluorine

**Physical Properties -** liquid range 2056.6 Thermal Conductivity 72w

Platinum commonly reacts with air or oxygen, all the halogens, mostly fluorine.

Platinum has many uses including dental implants, glass, jewelry, and magnets.

Something that you probably didn't know about platinum is that in can cause hearing damage, cancer, and even DNA altercations.

Platinum is mined as a small product of nickel and gold mining. Platinum is also found in ores such as sperrylite and cooperite.

Name of website The photographic Periodic Table Url of the website
 * Citation **

http://www.periodictable.com/Elements/078/index.html

Author of wesite Last Update Gray, Whitby, Mann

Last Update Sept. 2, 2013

Name of website RSC visual elements periodic table Url of website

http://www.rsc.org/periodic-table/element/78/platinum Author of website Royal Society of Chemistry Last Update 2014

Name of website Its elemental.The periodic Table of Elemtens Url of Website

http://education.jlab.org/itselemental/ele078.html Author of website Thomas Jefferson National Accelerator Facility Last Update 2014