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What is the atomic weight of Se, if S,Se,Te are dobereiner triads​

Answer» ATOMIC weight of Se = 79uExplanation:S | Se | TeSulfur has atomic mass of 32uTellurium's atomic mass is 127uAtomic mass of Se = Mean of S and TE atomic mass = 32 + 127 /2 = 159 /2 = 79u


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