Your recent edit caused a large part of the article to disappear in my browser, so I have reverted. In the lead you missed the point that Sefström gave the element a different name from that originally proposed by del Rio. Please note that following a request from user:stone I am revising this article for English and therefore ask you not to edit the article again until I have finished that revision. Petergans (talk) 14:39, 4 January 2009 (UTC)