Polonium element (Po) is in group 16 and period 6 of a periodic table. Polonium is in the p-block and it is classified as a post-transition element on the periodic table.
There is a lot more information related to polonium which is mentioned in the Information Table given below.
So let’s dive right into it!
Table of contents
- Polonium element (Information Table)
- Polonium element in Periodic table
- Facts about Polonium
- Properties of Polonium
- Uses of Polonium
Polonium Element (Information Table)
The important data related to polonium element is given in the table below.
|Appearance of polonium||Silvery gray appearance|
|Atomic number of polonium||84|
|Symbol of polonium||Po|
|Atomic mass of polonium (most stable isotope)||209 u|
|Protons, Neutrons & Electrons in polonium||Protons: 84, Neutrons: 125, Electrons: 84|
|State of polonium (at STP)||Solid|
|Group number of polonium in periodic table||16|
|Period number of polonium in periodic table||6|
|Block of polonium in periodic table||p-block|
|Category of polonium||Post transition element (chalcogens)|
|Bohr model or Electrons per shell or Electrons arrangement in polonium||2, 8, 18, 32, 18, 6|
|Electron configuration of polonium||[Xe] 4f14 5d10 6s2 6p4|
|Orbital diagram of polonium|
|Valence electrons in polonium||6|
|Electronegativity of polonium (on pauling scale)||2|
|Atomic radius of polonium (van der Waals radius)||197 picometers|
|Density of polonium||9.16 g/cm3|
|1st ionization energy of polonium||8.417 eV|
|Main isotope of polonium||210Po|
|Melting point of polonium||527 K or 254 °C or 489 °F|
|Boiling point of polonium||1235 K or 962 °C or 1764 °F|
|Crystal structure of polonium||Simple cubic|
Also see: Interactive Periodic Table (It has rotating bohr models as well as many other details of all the 118 elements in a single periodic table).
Polonium element in Periodic table
The Polonium element (Po) has the atomic number 84 and is located in group 16 and period 6. Polonium is a metal and it is classified as a post-transition element.
Click on above elements in the periodic table to see their information.
Facts about polonium
Here are a few interesting facts about the polonium element.
- Polonium was given its name from the country “Poland”, where Marie curie was born.
- Pierre Curie and Marie Curie discovered polonium in the year 1898.
- The concentration of polonium in the earth’s crust is around 1 part per quadrillion, which is very less.
- Polonium is mostly obtained from uranium ores.
- Polonium is 400 times more radioactive than uranium.
- Polonium is a highly radioactive element and it can emit as many alpha particles as 5 kg of radium.
Properties of polonium
Here is a list of some physical properties and chemical properties of polonium.
Physical properties of polonium
- Polonium has a silvery gray appearance.
- The density of polonium is 9.16 g/cm3 and its atomic mass is 209 amu.
- There are many isotopes of polonium, and the isotope 210Po is available in very rare amounts. Most of the isotopes of polonium are artificially prepared in the lab.
- The melting point and boiling point of polonium is 527 K and 1235 K respectively.
Chemical properties of polonium
- Polonium is a radioactive element and it is also toxic.
- Polonium is less soluble in alkalis.
- Polonium gets dissolved in dilute acids.
- Polonium solutions contain Po2+ ions and due to this the solution appears pink. When the alpha radiations are emitted, the Po2+ ions are converted into Po4+ ions and this makes the solution appear yellow in color.
Uses of polonium
Here are some uses of the polonium element.
- Polonium is used as a heat source in radioisotope thermoelectric generators.
- Polonium can also be used in sheet metal rolling processes to eliminate the static electricity.
- Polonium is alloyed with beryllium and this alloy is used as a neutron source.
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- Zhang, et al. (2011, January 11). Corrected Values for Boiling Points and Enthalpies of Vaporization of Elements in Handbooks. Journal of Chemical & Engineering Data, 56(2), 328–337. https://doi.org/10.1021/je1011086
- Atomic Data for Polonium (Po). (n.d.). Atomic Data for Polonium (Po). https://physics.nist.gov/PhysRefData/Handbook/Tables/poloniumtable1.htm
- C&EN: IT’S ELEMENTAL: THE PERIODIC TABLE – POLONIUM. (n.d.). C&EN: IT’S ELEMENTAL: THE PERIODIC TABLE – POLONIUM. https://pubsapp.acs.org/cen/80th/polonium.html?
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