Talk:Electron shell
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But iridium isn't Period 5. In the iridium's electron shell diagram, there are 5 shells. Iridium is in Period 6.— Preceding unsigned comment added by 78.169.160.101 (talk • contribs) 29 November 2009 (UTC)
OK is already fixed--Estopedist1 (talk) 09:02, 19 February 2020 (UTC)