1)Examine elements of the third period and classify them as metals and non metals.
2)On which side of the periodic table do you find the metals?
3)On which side of the periodic table do you find the non metals?

Dear student,
1.The elements present in third period are sodium,magnesium,aluminium,silicon,phosphorus,sulfur,chlorine and argon.
Only sodium and magnesium are metals,rest all are non metals.

2.Metals are found on the left side.

3.Non metals are found on the right side.


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