Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Reference source for atomic, covalent, ionic and Van-der-Waals radii?
XenonRadon
Harmless
*




Posts: 7
Registered: 6-8-2019
Member Is Offline


[*] posted on 16-8-2019 at 08:53
Reference source for atomic, covalent, ionic and Van-der-Waals radii?


Will appreciate you help/opinions. What would you consider to be a credible reference source for radii of the elements: atomic, covalent, ionic and Van-der-Waals radii? I have been looking at several reference books and website sources, the numbers vary.
View user's profile View All Posts By User
Metacelsus
International Hazard
*****




Posts: 2539
Registered: 26-12-2012
Location: Boston, MA
Member Is Offline

Mood: Double, double, toil and trouble

[*] posted on 16-8-2019 at 10:38


https://www.ccdc.cam.ac.uk/ has crystallographic data. You can probably find the interatomic distances of most elements from this.

Of course, the "radii" of atoms will depend on their context (eg, H2 vs HCl vs Cl2)




As below, so above.

My blog: https://denovo.substack.com
View user's profile View All Posts By User
j_sum1
Administrator
********




Posts: 6320
Registered: 4-10-2014
Location: At home
Member Is Offline

Mood: Most of the ducks are in a row

[*] posted on 17-8-2019 at 00:38


Or you could use this periodic table. I have not checked, but I see no reason to doubt its accuracy. It gives you the radii you are after.
https://ptable.com/#Property/Radius/Calculated




View user's profile View All Posts By User
XenonRadon
Harmless
*




Posts: 7
Registered: 6-8-2019
Member Is Offline


[*] posted on 29-10-2019 at 07:35


Metacelus / j_sum1 - Thanks for those references. (And excuse the late reply, just realized I never posted a "thank you.")
View user's profile View All Posts By User
morganbw
National Hazard
****




Posts: 561
Registered: 23-11-2014
Member Is Offline

Mood: No Mood

[*] posted on 29-10-2019 at 14:58


Quote: Originally posted by j_sum1  
Or you could use this periodic table. I have not checked, but I see no reason to doubt its accuracy. It gives you the radii you are after.
https://ptable.com/#Property/Radius/Calculated

I have this bookmarked. Really like it.
View user's profile View All Posts By User
CharlieA
National Hazard
****




Posts: 646
Registered: 11-8-2015
Location: Missouri, USA
Member Is Offline

Mood: No Mood

[*] posted on 29-10-2019 at 16:11


Quote: Originally posted by j_sum1  
Or you could use this periodic table. I have not checked, but I see no reason to doubt its accuracy. It gives you the radii you are after.
https://ptable.com/#Property/Radius/Calculated


I bookmarked it too. Thanks for the link.

OP: have you checked a handbook like Lange's or the CRC Handbook? I would not be surprised at finding small differences reported for various atomic/molecular dimensions in different sources, especially if the sources for from very different times.
View user's profile View All Posts By User

  Go To Top