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4. XYZ are three elements obeying Dobereiner's law. If theatomic mass of X = 32u and Z=128u, what is the atomic massof element1)80u2)79u3)82u4)81u​

Answer» 80U EXPLANATION:gsjxjxgzhjjzfzgznb fzgvzhzgzgsbhshs


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