Atomic Number of Platinum

Platinum Atomic Number

Atomic Number of Platinum is 78.

Chemical symbol for Platinum is Pt. Number of protons in Platinum is 78. Atomic weight of Platinum is 195.084 u or g/mol. Melting point of Platinum is 1772 °C and its the boiling point is 3827 °C.

» Boiling Point » Melting Point » Abundant » State at STP » Discovery Year

About Platinum

Platinum is a light silvery hard metal which is very resistive to corrosion, and it has been known for centuries, at least since per-Mayan epochs. The name of this element takes its origins from the Spanish word meaning little silver. Platinum has no importance for biological life on the planet, and it can be found in its pure form and in compounds with other elements (mainly in South America). It is a precious metal which is more expensive than gold. Platinum has plenty of applications, including producing LCD, optical fibers, some parts of electronic devices, pacemakers, jewelry, dental fillings, as well as for some cancer treatments.

Properties of Platinum Element

Atomic Number (Z)78
Atomic SymbolPt
Atomic Weight195.084 u
Density21.46 g/cm3
Melting Point (K)2041.4 K
Melting Point (℃)1772 °C
Boiling Point (K)4098 K
Boiling Point (℃)3827 °C
Heat Capacity0.133 J/g · K
Abundance0.005 mg/kg
State at STPSolid
DescriptionTransition metal
Electronegativity (Pauling) χ2.28
Ionization Energy (eV)8.9587
Atomic Radius135pm
Covalent Radius128pm
Van der Waals Radius175
Valence Electrons1
Year of Discovery1557

What is the Boiling Point of Platinum?

Platinum boiling point is 3827 °C. Boiling point of Platinum in Kelvin is 4098 K.

What is the Melting Point of Platinum?

Platinum melting point is 1772 °C. Melting point of Platinum in Kelvin is 2041.4 K.

How Abundant is Platinum?

Abundant value of Platinum is 0.005 mg/kg.

What is the State of Platinum at Standard Temperature and Pressure (STP)?

State of Platinum is Solid at standard temperature and pressure at 0℃ and one atmosphere pressure.

When was Platinum Discovered?

Platinum was discovered in 1557.