Want to know the molecular size of some heavy metals 1

[lpy2000]

Hello everyone,
I am glad to find such a good forum like this and this is my first time to post a question in this forum. I am now doing a research on the adsorption of heavy metals using some bio-material. Things i would like to know in order to explain the adsorption mechanism is the molecular size of Copper, Cadmium, Lead, Nickel and Zinc.
What in my sound is that molecular size is some thing different from molecular weight but i really don't know where to find such that data. How small is it? and if possible, i would also want to know the molecular structure of these heavy metal (3D) as well.
Anyone can suggest me a resouce or suggestion for me please.
Best regards,

LPY

 

[dicksewerrat]

Probably one of the chemical forums.

 

[RWF7437]

The metals you mention are all elements. Therefor, you'll want to know their atomic weight, not their molecular weight. Almost any good basic chemistry book should contain the information you seek. Have you tried the Hanbook of Chemistry and Physics ?

 

[ch81pc]

It is very unlikely that pure atomic radii will be of use to you as these metals are more than likely present as ions. Here is the info you wanted all measurements are in pico meters

Cu 127.8

Cd 156.8

Pb 175.0

Ni 124.6

Zn 139.4

Hope this helps

Paul

 

[lpy2000]

Dear Paul,
Thank you very much for your information. Could you please tell me the source where i can make a reference to those data.
Best regards,

LPY

 

[25362]

The following sizes in Angstroms, 10^-10m

Atomic diameters by
Atomic radii quantun mechanics

Cu 1.28 3.14
Zn 1.33 3.06
Cd 1.49 3.42
Ni 1.24 3.24
Pb 1.75 3.62

Source:

http://dl.clackamas.cc.or.us/ch104-07/atomic_size.htm

Is this sufficient ?