Element 84 of Periodic table is Polonium with atomic number 84, atomic weight 209. Polonium, symbol Po, has a Simple Cubic structure and Silver color. Polonium is a metalloid element. Trivial name of Polonium is chalcogens*. Know everything about Polonium Facts, Physical Properties, Chemical Properties, Electronic configuration, Atomic and Crystal Structure.
Polonium is a chemical element with symbol Po and atomic number 84, discovered in 1898 by Marie Curie and Pierre Curie. A rare and highly radioactive element with no stable isotopes, polonium is chemically similar to bismuth and tellurium, and it occurs in uranium ores. Applications of polonium are few.
Read key information and facts about element Polonium
Explore our interactive periodic table
Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of electrons. 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 84 to find Polonium 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 Polonium on periodic table look for cross section of group 16 and period 6 in the modern periodic table.
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The element Polonium was discovered by Pierre Curie in year 1898 in France . Polonium derived its name from Named after the home country of Marie Curie(Poland), who is also the discoverer of Radium
The table below shows the abundance of Polonium in Universe, Sun, Meteorites, Earth's Crust, Oceans and Human Body.
The solid state structure of Polonium is Simple Cubic.
The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in three dimensional space to form the structure.
The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell edges 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.
Polonium atoms have 84 electrons and the electronic shell structure is [2, 8, 18, 32, 18, 6] with Atomic Term Symbol (Quantum Numbers) 3P2.
Shell Structure of Polonium - Electrons per energy level
The ground state electronic configuration of Neutral Polonium atom is [Xe] 4f14 5d10 6s2 6p4. The portion of Polonium 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 5d10 6s2 6p4, electrons in the outermost shell that determine the chemical properties of the element.
Complete ground state electronic configuration for the Polonium atom, Unabbreviated electronic configuration
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p4
Polonium atomic radius is 135 pm, while it's covalent radius is N/A.
135 pm (1.35 Å)
The electron affinity of Polonium is 183.3 kJ/mol
Refer to table below for Ionization energies of Polonium
Refer to below table for Polonium Physical Properties
Polonium is Conductor of electricity. Refer to table below for the Electrical properties of Polonium
Refer to table below for Thermal properties of Polonium
Isotopes of rhodium. Naturally occurring Polonium has 1 stable isotope - None.
List of unique identifiers to search the element in various chemical registry databases