{^f Coinage metals: authors differ on irrespective of whether roentgenium (Rg) is considered a coinage metal. It truly is in group eleven, like the other coinage metals, and is expected for being chemically just like gold.
The weather in a group have similar physical or chemical traits in the outermost electron shells of their atoms (i.e., the identical core cost), due to the fact most chemical Homes are dominated with the orbital site with the outermost electron.
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