by: Scott Brewster(Darth Ginger)

For Your Information

History- Platinum was discovered by Antonio de Ulloa in 1735 in South America. The origin of the name is platina meaning Silver.

3 properties- It is a solid. It has a boiling point of 3820°C, or 4093°K. It has a melting point of 1768°C, or 2041°K.

Uses- An alloy of platinum along with cobalt is used to make strong permanent magnets. It is also used in jewelry, decoration, and dental work. It's also used for electrical contacts, fine resistance wires and medical/laboratory instruments.

3 compounds with this element in them- Platinum(IV) Hydroxide(Pt(OH)4), Platinum(II) Fluoride(PtF2), and Platinum(IV) Sulfate(Pt(SO4)2).

Periodic Table Information

Atomic Mass- 195.08(Rounded is 195)

Particles- 78 electrons, 78 protons, and 117 neutrons(In the most abundant isotope)

Nuclide notation-156/78 Pt

Hyphen notation- Platinum-117

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Valence electrons: Platinum has 2 or 3 valence electrons.
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-Platinum is in the Transition Metals group. This means that not only it doesn't have a set number of valence electrons, but it can bond with nonmetals, have high densities, are usually hard and tough, and are less reactive than alkali metals.

Pt2 + O

Platinum Oxide is a Synthesis Reaction.

Mole Ratio: 2(Platinum):1(Oxygen)


"Platinum: Historical Information." Platinum»historical Information [WebElements Periodic Table]. N.p., n.d. Web. 03 May 2016.

"Platinum Element Facts." Chemicool. N.p., n.d. Web. 03 May 2016.

"ENDMEMO." Common Compounds of Platinum Pt. N.p., n.d. Web. 03 May 2016.

"The Wright Stuff." Properties of the Transition Metals. N.p., n.d. Web. 04 May 2016.


A compound that involves Platinum is Pt(OH)4. This compound is called Platinum Hydroxide. This is an Ionic Bond. This compound consists of 80-85% platinum and the rest is composed of hydroxide.

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Monte Cristo