20gm of an element contains 3×10^22 atoms
find 1)Gram Atomic Mass 2)Number of nucleons in 200gm of the element​

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   Number of nucleon =MolarmassofnucleonMassofatom=1.6726×10−24g/nucleon3.32×10−23g=19.8=20(approximately)

   It is given that element comprises of 2 atoms

   Hence,number of nucleon = 2×20=40

   Hope that helps..!!

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