{^f Coinage metals: authors vary on whether roentgenium (Rg) is considered a coinage steel. It can be in group eleven, like the other coinage metals, and is anticipated to get chemically comparable to gold.
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Output: As it is possible to see in the above mentioned output the students with both of those the identical Issue and Yr are put in exactly the same group. And people whose only SUBJECT is similar although not YEAR belong to diverse groups. So here We now have grouped the desk Based on group two columns or multiple column.