Elements
86

Rn

Radon

Radon (Rn) is a colourless, odourless, radioactive gas non-metal that has the atomic number 86 in the periodic table in Group 18. It has the symbol Rn.

Radon is a chemical element that is a radioactive gas.It occurs naturally in small amounts due to radioactive decay of thorium and uranium. It has a half life of 3.8 days and is very rare as it decays at a quick rate. Uranium and Thorium are very abundant radioactive elements so Radon is consistently being created. Radon is the second leading cause of lung cancer after smoking due to its emission of alpha particles that when breathed in can cause a large amount of damage. Radon is one of the biggest contributors to background radiation experienced by humans on earth. Radon was discovered in 1889 by Ernest Rutherford and Robert Owens. It is used in radiation therapy and also in nuclear reactors. It is a non metallic gas at room temperature and it has a melting point of -71°c and a boiling point of -61°c.

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FAQ's

What is the Melting Point for Radon?

Radon has a Melting Point of -71°F, meaning at -71°F it will turn to a liquid.

What is the Boiling Point for Radon?

Radon has a Boiling Point of -61.8°F, meaning at -61.8°F it will turn to a Gas.

What is the Electronegativity of Radon?

Radon's Electronegativty is 2.2. Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves.

What is the Heat of Vaporization of Radon?

Radon has a Heat of Vaporization of 16.4 kJ/mol.

Uses

Used to treat some forms of cancer.

Sources

Formed from the decay of radium in the earths crust.

86
Protons
86
Electrons
136
Neutrons

Rn

Element Symbol
Rn
Atomic Weight
222
Atomic Number
86
State
Gas
Melting Point
Unknown
-71
°C
Boiling Point
-61.8
Unknown
°C
Heat of Vaporization
16.4
Unknown
kJ/mol
Crystal Structure
Cubic: Face centered
Thermoconductivity
0.0000364
Unknown
W/cmK
Shells
2,8,18,32,18,8
Group
Noble Gas
Period
6
Block
P Block
Orbitals
[Xe] 4f14 5d10 6s2 6p6
Coefficient of Thermal Expansion
--
Covalent Radius
--
Density at 293K
0.00973 g/cm³
Electrical Conductivity
--
First Ionization Potential
10.7485 V
Second Ionization Potential
--
Third Ionization Potential
--
Ionic Radius
--
Oxydation States
0
Lattice Parameter
--
Lattice Parameter 2
--
Lattice Parameter 3
--
Pronounced

RAY-don

Discovered by

Fredrich Ernst Dorn

Discovery date

1898

Orbital configuration
2,8,18,32,18,8

Download the Periodic Table

Explore Other Noble Gass

4.003
2

He

Helium
39.948
18

Ar

Argon
131.293
54

Xe

Xenon
20.18
10

Ne

Neon
294
118

Og

Oganesson
83.798
36

Kr

Krypton
Noble gases are seven chemical elements that make up group 18 (VIIIa) of the periodic table: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn) and oganesson (Og). They are colorless, odorless, tasteless, nonflammable gases.
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