
Radon element (Rn) is in group 18 and period 6 of a periodic table. Radon is in the p-block and it is classified as a noble gas element on the periodic table.
There is a lot more information related to radon which is mentioned in the Information Table given below.
So let’s dive right into it!
Table of contents
- Radon element (Information Table)
- Radon element in Periodic table
- Facts about Radon
- Properties of Radon
Radon Element (Information Table)
The important data related to radon element is given in the table below.
Appearance of radon | Colorless gas |
Atomic number of radon | 86 |
Symbol of radon | Rn |
Atomic mass of radon (most stable isotope) | 222 u |
Protons, Neutrons & Electrons in radon | Protons: 86, Neutrons: 136, Electrons: 86 |
State of radon (at STP) | Gas |
Group number of radon in periodic table | 18 |
Period number of radon in periodic table | 6 |
Block of radon in periodic table | p-block |
Category of radon | Noble gas |
Bohr model or Electrons per shell or Electrons arrangement in radon | 2, 8, 18, 32, 18, 8 |
Electron configuration of radon | [Xe] 4f14 5d10 6s2 6p6 |
Orbital diagram of radon | ![]() |
Valence electrons in radon | 8 |
Atomic radius of radon (van der Waals radius) | 220 picometers |
Density of radon | 9.73 g/L |
1st ionization energy of radon | 10.745 eV |
Main isotope of radon | 222Rn |
Melting point of radon | 202 K or -71 °C or -96 °F |
Boiling point of radon | 211.5 K or -61.7 °C or -79.1 °F |
Crystal structure of radon | Face Centered Cubic (FCC) |
Discovery of radon | By Ernest Rutherford and Robert Owens (in 1899) |
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).
Radon element in Periodic table
The Radon element (Rn) has the atomic number 86 and is located in group 18 and period 6. Radon is a nonmetal and it is classified as a noble gas element.
H | He | ||||||||||||||||
Li | Be | B | C | N | O | F | Ne | ||||||||||
Na | Mg | Al | Si | P | S | Cl | Ar | ||||||||||
K | Ca | Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn | Ga | Ge | As | Se | Br | Kr |
Rb | Sr | Y | Zr | Nb | Mo | Tc | Ru | Rh | Pd | Ag | Cd | In | Sn | Sb | Te | I | Xe |
Cs | Ba | La* | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | Bi | Po | At | Rn |
Fr | Ra | Ac** | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og |
*Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | ||||
**Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr |
Facts about radon
Here are a few interesting facts about the radon element.
- Radon was given its name from the element “radon”. This is because the radon is obtained from the decay of radium.
- Ernest Rutherford and Robert Owens discovered radon in 1899.
- Radon is also called “Cancer causing radioactive gas”, because it is responsible for cancer in humans.
- Out of all the gases on the periodic table, radon is the heaviest known gas.
- Radon gas is available from the radioactive decay of radium, uranium and thorium.
Properties of radon
Here is a list of some physical properties and chemical properties of radon.
Physical properties of radon
- Radon is a colorless, tasteless and odorless gas.
- Radon is the heaviest known gas and its density is 9.73 g/L.
- When radon gas is cooled below its freezing temperature, it emits a light which changes from yellowish to reddish orange.
- There are many isotopes of radon and all those isotopes are radioactive in nature.
Chemical properties of radon
- Radon is an inert gas and because of this reason it does not show any chemical reaction with other elements. But it shows some reaction only under extreme conditions.
- Radon gas is slightly soluble in water and other organic solvents.
- Everyone breathes small amounts of radon gas, but that’s fine. If radon is inhaled in large amounts, then it causes lung cancer.
Article by;