Platinum

By: Maghen Warren

About Platinum!

• Symbol: Pt• Atomic number: 78• Atomic mass: 195.078

amu• Boiling point: 3827.C• Melting point:1772.C• Denisty: 21.45 g/cm3

• Most abundant physical state: solid

• # Of protons: 78• # Of electrons: 78• # Of neutrons: 117• # Of valence

electrons:6

More!

• Electron Configeration 1s22s2p63s2p6d104s2p6d

• 104s2p6d10f145s2p6d9d96s1

• Element group: 10• Element period: 6• Element’s usual

charge: 2+

Facts

• The color is a silver like white.

• There is no odor to it.• Mostly non toxic.• Common isotopes: 78.

It’s Discovery

• Discovered by Julius Scalger

• Discovered in 1735• Got its name from the

word “platinum which means little silver.

Abundant

• Most abundant is platinum 194, which makes up 33% of platinum.

• Platinum 195 and 196 are also common.

• Platinum 198, 192, and190 are the rarest.

Where Does It Come From?

• Found in ultrabasic rocks.

• In the Earth’s mantle.

What Is It Used for?

• To make jewelry

• In dental crowns

• To make crucibles

• Combined with cobalt to make very strong magnets

Interesting Facts!

• Hardness: 3.5 mohs• Japanese buy 85% of

the world’s platinum jewelry each year. 

• Only about 133 tons of Platinum are mined annually

• Very heavy, but soft• Rarest of the precious

metals• Approximately 10 tons

of raw ore must be mined to produce just one pure ounce of platinum

-Work Cited

Platinum." Facts About Everything! Arts, Literature, Science, History, Events, Entertainment, People, Places and

the Natural World. Web. 24 May 2010 .<http://www.facts-about.org.uk/science-element-platinum.htm>

Bentor, Yinon. Chemical Element.com - Platinum. May 24, 2010

<http://www.chemicalelements.com/elements/pt.html>.

Gagnon, Steve. "It's Elemental - The Element Platinum." Science Education at Jefferson Lab. Web. 27 May 2010.

<http://education.jlab.org/itselemental/ele078.html>.