Element 78 of Periodic table is
Platinum with atomic number 78,
atomic weight 195.078.
Platinum, symbol Pt, has a
Face Centered Cubic structure and Gray color.
Platinum is a transition metal element.
Know everything about Platinum Facts, Physical Properties, Chemical
Properties, Electronic configuration, Atomic and Crystal Structure.
Platinum is a chemical element with symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, gray-white transition metal. Its name is derived from the Spanish term platina, which is literally translated into "little silver".
Read key information and facts about element Platinum
Explore our interactive periodic table
Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of
The atomic number increases from left to right. Periodic table starts at top left ( Atomic number 1) and
ends at bottom right (atomic number 118). Therefore you can directly look for atomic number
78 to find Platinum on periodic table.
Another way to read periodic table and locate an element is by using group number (column)
and period number (row). To locate Platinum on periodic
table look for cross section of group 10 and period
6 in the modern periodic table.
Interactive Periodic Table to Understand
and Learn Cool Trends
The element Platinum was discovered by Antonio de Ulloa in year
1735 in Peru
derived its name from the Spanish platina, meaning 'little silver'
The table below shows the abundance of Platinum in Universe, Sun, Meteorites,
Earth's Crust, Oceans and Human Body.
The solid state structure of Platinum is Face Centered Cubic.
The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in
dimensional space to form the structure.
The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell
Lattice Constants (a, b and c)
and the angles between them Lattice Angles (alpha, beta and gamma).
The positions of the atoms inside the unit cell are described by the set of atomic positions (
xi, yi, zi) measured from a reference lattice point.
The symmetry properties of the crystal are described by the concept of space groups. All possible
symmetric arrangements of particles in three-dimensional space are described by the 230 space groups
(219 distinct types, or 230 if chiral copies are considered distinct.
Platinum atoms have 78 electrons and
the electronic shell structure is [2, 8, 18, 32, 17, 1] with Atomic Term Symbol (Quantum Numbers) 3D3.
Shell Structure of Platinum - Electrons per energy
The ground state electronic configuration of Neutral Platinum atom is
[Xe] 4f14 5d9 6s1.
The portion of Platinum configuration that is equivalent to the noble gas of
the preceding period, is abbreviated as [Xe]. For atoms with many electrons, this
notation can become lengthy and so an abbreviated notation is used.This is important as it is
the Valence electrons 4f14 5d9 6s1, electrons in
the outermost shell that determine the chemical properties of the element.
Complete ground state electronic configuration for the Platinum atom, Unabbreviated electronic configuration
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d9 6s1
Platinum atomic radius is 177 pm, while it's covalent radius is 128 pm.
The electron affinity of Platinum is 205.3 kJ/mol
Refer to table below for Ionization energies of Platinum
Refer to below table for Platinum Physical Properties
Platinum is Conductor of electricity. Refer to
below for the Electrical properties of Platinum
Refer to table below for Thermal properties of Platinum
Isotopes of rhodium. Naturally occurring Platinum has
5 stable isotope -
192Pt, 194Pt, 195Pt, 196Pt, 198Pt.
List of unique identifiers to search the element in various chemical registry databases