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The elements inside a group have comparable Bodily or chemical attributes on the outermost electron shells in their atoms (i.e., the exact same Main demand), mainly because most chemical Attributes are dominated via the orbital locale of your outermost electron.
Output: As it is possible to see in the above 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 API서비스 YEAR belong to unique groups. So here We now have grouped the desk Based on two columns or multiple column.