Question

if alluminium is metal then why alluminium is placed at non metals in periodic table

Answer 1

Hey friend ......
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In the modern periodic table, the elements have been roughly divided into metals and non-metals. The elements on the left side of the periodic table are metals whereas those on the right side are non-metals. In the periodic table metals have been separated from non-metals by some elements called "metalloids" which are placed diagonally in a periodic table.
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So aluminum is a metal which is separated from the non-metals by metalloids. You can say that on the elements on the left side of metalloids, in the non-metals category, are metals....
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For example,: Ga, In, Sn, Pb, Tl, Bi, etc are metals..
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I Hope This Will Help You^_^

Answer 2

no aluminium is the metal you had wrong periodic table
the correct is here