Sap123

Hello, Sap123! Welcome to Wikipedia! Thank you for your contributions to this free encyclopedia. If you decide that you need help, check out Getting Help below, ask me on my talk page, or place {{helpme}} on your talk page and ask your question there. Please remember to sign your name on talk pages by clicking or using four tildes (~~~~); this will automatically produce your username and the date. Finally, please do your best to always fill in the edit summary field. Below are some useful links to facilitate your involvement. Happy editing! Kingturtle (talk) 21:12, 10 November 2008 (UTC) Getting started A tutorial • Our five pillars • Getting mentored How to: edit a page • upload and use images Getting help Frequently asked questions • Tips Where to ask questions or make comments Request administrator attention Policies and guidelines Neutral point of view • No original research Verifiability • Reliable sources • Citing sources What Wikipedia is not • Biographies of living persons Manual of Style • Three-revert rule • Sock puppetry Copyrights • Policy for non-free content • Image use policy External links • Spam • Vandalism Deletion policy • Conflict of interest • Notability The community Build consensus • Resolve disputes Assume good faith • Civility • Etiquette No personal attacks • No legal threats Community Portal • Village pump Signpost • IRC channels • Mailing lists Writing articles Be bold in editing • Develop an article The perfect article • Manual of style Stubs • Categories • Disambiguation Pages needing attention • Peer review Miscellaneous User name • User pages • Talk pages Clean up: General • Spam • Vandalism Join a WikiProject • Translation Useful templates • Tools • User scripts

Workplace

Table of covalent radii in picometer (pm)

Group	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
Period
1	H 37																	He 32
2	Li 134	Be 90											B 82	C 77	N 75	O 73	F 71	Ne 69
3	Na 154	Mg 130											Al 118	Si 111	P 106	S 102	Cl 99	Ar 97
4	K 196	Ca 174	Sc 144	Ti 136	V 125	Cr 127	Mn 139	Fe 125	Co 126	Ni 121	Cu 138	Zn 131	Ga 126	Ge 122	As 121	Se 116	Br 114	Kr 110
5	Rb 211	Sr 192	Y 162	Zr 148	Nb 137	Mo 145	Tc 131	Ru 126	Rh 135	Pd 131	Ag 153	Cd 148	In 144	Sn 141	Sb 138	Te 135	I 133	Xe 130
6	Cs 225	Ba 198	La 169	Hf 150	Ta 138	W 146	Re 159	Os 128	Ir 137	Pt 138	Au 144	Hg 149	Tl 148	Pb 146	Bi 146	Po -	At 145	Rn 145

Covalent radius

The table that you added looks really pretty, but where do the numbers come from? (I know they come from the German Wikipedia, but where do they come from ultimately?) The don't match the numbers from the table that was already in the article, which come from what I think is the most recent and comprehensive survey of covalent radii. --Itub (talk) 14:00, 17 November 2008 (UTC)

Yes, I noticed that too - but sadly after I had already added the table. I'm not quite sure what to do with it now, it would probably be best to delete the table again and get it up once it's updated with the data from the Cambridge Structural Database. And that's what I'll do now ... --Sap123 (talk) 18:45, 17 November 2008 (UTC)