Elements
78

Pt

Platinum

Platinum (Pt) is a heavy white metal that has the atomic number 78 in the periodic table. It is a Transition metal in Group 10. It has the symbol Pt.

Platinum was discovered in South America and the first written record of it is from 1557 when the writer Julius Scaliger found strange metals in mines of Panama and Mexico. In 1783 Francois Chabaneaus patented a method of producing platinum. The name Platinum derives from the Spanish ‘platina’ meaning little silver. Platinum lends it name to the Platinum group of metals that all have similar properties. Platinum is used as a catalyst due to its unreactive nature and also in the production of jewelry and dental work. It is a solid metal at room temperature with a melting point of 1768°c and a boiling point of 3825°c. It is a rare metal but can be found uncombined often in small amounts in the earth.

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FAQ's

What is the Melting Point for Platinum?

Platinum has a Melting Point of 1769°F, meaning at 1769°F it will turn to a liquid.

What is the Boiling Point for Platinum?

Platinum has a Boiling Point of 3827°F, meaning at 3827°F it will turn to a Gas.

What is the Electronegativity of Platinum?

Platinum's Electronegativty is 2.28. Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves.

What is the Heat of Vaporization of Platinum?

Platinum has a Heat of Vaporization of 510 kJ/mol.

Uses

Used in jewelry, to make crucible and special containers and as a catalyst. Used with cobalt to produce very strong magnets. Also to make standard weights and measures. Resists corrosion and acid attacks except aqua regia.

Sources

Produced from deposits of native, or elemental, platinum.

78
Protons
78
Electrons
117
Neutrons

Pt

Element Symbol
Pt
Atomic Weight
195.084
Atomic Number
78
State
Solid
Melting Point
Unknown
1769
°C
Boiling Point
3827
Unknown
°C
Heat of Vaporization
510
Unknown
kJ/mol
Crystal Structure
Cubic: Face centered
Thermoconductivity
0.716
Unknown
W/cmK
Shells
2,8,18,32,17,1
Group
Transition Metal
Period
6
Block
D Block
Orbitals
[Xe] 4f14 5d9 6s1
Coefficient of Thermal Expansion
8.8 10^-6 K^-1
Covalent Radius
1.30 Å
Density at 293K
21.45 g/cm³
Electrical Conductivity
0.0966 10^6/cm ohm
First Ionization Potential
9.0 V
Second Ionization Potential
18.563 V
Third Ionization Potential
--
Ionic Radius
.63 (+4) Å
Oxydation States
2,(4)
Lattice Parameter
3.9240 Å
Lattice Parameter 2
5.8697 Å
Lattice Parameter 3
5.5250 Å
Pronounced

PLAT-n-em

Discovered by

Julius Scaliger

Discovery date

1735

Orbital configuration
2,8,18,32,17,1

Download the Periodic Table

Explore Other Transition Metals

47.867
22

Ti

Titanium
58.693
28

Ni

Nickel
112.414
48

Cd

Cadmium
50.942
23

V

Vanadium
285
112

Cn

Copernicium
92.906
41

Nb

Niobium
44.956
21

Sc

Scandium
97
43

Tc

Technetium
190.23
76

Os

Osmium
63.546
29

Cu

Copper
200.592
80

Hg

Mercury
270
105

Db

Dubnium
269
106

Sg

Seaborgium
51.996
24

Cr

Chromium
54.938
25

Mn

Manganese
192.217
77

Ir

Iridium
95.95
42

Mo

Molybdenum
91.224
40

Zr

Zirconium
58.933
27

Co

Cobalt
55.845
26

Fe

Iron
183.84
74

W

Tungsten
102.905
45

Rh

Rhodium
65.38
30

Zn

Zinc
270
108

Hs

Hassium
106.42
46

Pd

Palladium
178.49
72

Hf

Hafnium
267
104

Rf

Rutherfordium
186.207
75

Re

Rhenium
270
107

Bh

Bohrium
101.07
44

Ru

Ruthenium
107.868
47

Ag

Silver
88.906
39

Y

Yttrium
196.967
79

Au

Gold
180.948
73

Ta

Tantalum
Transition metal is any of various chemical elements that have valence electrons (electrons that can participate in the formation of chemical bond) in two shells instead of only one. They form group 3 (IIIb) through group 12 (IIb).
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