newton desk facebook page newton desk google android app

Subscribe Your Email To Get Free All Latest Updates...

Loading
Newton desk yellow qr code To Get Better Experience of This Website, Kindly Open It On Laptop / PC / Tablet   All FlashCard Images Are In High-Resolution, Please wait For a while To Open When You Click On Image. 
Home / Newton Desk / Radon Rn (Element 86) of Periodic Table
Radon Rn (Element 86) of Periodic Table

Radon Rn (Element 86) of Periodic Table

86 Rn (Radon)

Appearance:  Colorless gas, Occasionally glows green or red in discharge tubes

Mass number:  222

Atomic weight:  222.0176 g/mol

Atomic number (Z):  86

Electrons:  86

Protons:  86

Neutrons:  136

Group:  18

Period:  6

Block:  P

Element category:  Noble gas

Electrons per shell:  K2, L8, M18, N32, O18, P8

Electron configuration:  1s22s22p63s23p63d104s24p64d105s25p64f145d106s26p6

Phase:  Gas

Melting point:  202 K (-71 oC)

Boiling point:  211.5 K (-61 oC)

Density:  9.73 kg/m3 (in Gas), 4.4 g/cm3 (In Liquid at B.P)

Molar volume:  0.0228 m3/mol

Thermal conductivity:  0.00361 W/m*K)

Valence:  6

Electron affinity:  0 kJ/mol

Half Life(s):  330350

Lifetime(s):  476590

Decay mode:   α decay

Neutron cross section (Barns):  0.7

Critical point:  377 K, 6.28 MPa

Heat of Fusion: 3.247 kJ/mol

Heat of vaporization:  18.10 kJ/mol

Molar heat capacity:  5R/2 = 20.786 J/(mol∙K)

Oxidation states:  2, 2, 0

Electronegativity: 2.2

Ionization energies:  1st: 1037 kJ/mol

Atomic radius:  120 pm

Covalent radius:  150 pm

Vander waals radius:  220 pm

Crystal structure:  Face-centered cubic

Thermal conductivity:  3.61×10-3 W/(m∙K)

Magnetic ordering:  non-magnetic

CAS Number:  10043-92-2

Discovery:  Ernest Rutherford and Robert B. Owens (1899)

First isolation: William Ramsay and Robert Whytlaw-Gray (1910)

Isotopes:  210Rn 211Rn 222Rn  224Rn

Uses:  useful in cancer therapy, treat tumours etc.. use in Home testing kits

Natural Abundance:  Radon is produced naturally from the decay of the isotope radium-226, which is found in rocks

#radon

More Elements FlashCards

Leave a Reply

Your email address will not be published. Required fields are marked *

*

Scroll To Top
Translate »
error: