Talk:Periodic table (metals and nonmetals)

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How are Metals Different from Non-Metals? Metals are more malleable and ductile where nonmetals are brittle. Metals are also conductive and nonmetals insulators.

If only an atom or two at a time of a synthetic element has been made, can you really conclusively say that you know it to be a solid at RT?


109 Meitnerium[edit]

The link to Meitnerium on the table appears to be broken, but I don't understand the code well enough to fix it. It currently points to Periodic table (metals and non-metals)#FCFCFC. RJC Talk Contribs 19:02, 17 July 2008 (UTC)

Thanks for pointing this out. I corrected the link. (Seems I was also the one who broke it in the first place.) --Roentgenium111 (talk) 19:35, 19 July 2008 (UTC)


Astatine[edit]

Isn't astatine supposed to be a halogen, which would make it a nonmetal, not a metalloid? Yankeesrule3 (talk) 23:41, 7 April 2010 (UTC)

You're right. I'll change the table accordingly. --Roentgenium111 (talk) 18:41, 8 April 2010 (UTC)





Astatine is a halogen, but is a metalloid.
Will someone fix it?—Preceding unsigned comment added by 71.217.81.5 (talk) 00:21, 1 December 2010 (UTC)

Do you have a reliable source for it being a metalloid? --Roentgenium111 (talk) 21:00, 1 December 2010 (UTC)




Oh I know, Polonium is a metal, and Astatine is a nonmetal, so I changed Polonium to a metal. —Preceding unsigned comment added by Wd930 (talkcontribs) 01:53, 5 December 2010 (UTC)


According to diagonal trend from boron, At should be a metalloid. Some calculations predict that it is even rather metallic:

http://www.rsc.org/chemistryworld/2013/09/astatine-metallic-superconductor-predictions

95.49.94.63 (talk) 15:26, 24 October 2013 (UTC)