Chemistry, asked by kishorelalit9965, 11 months ago

Write the name, symbol, atomic no, atomic mass of elements from 1to 30

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Answered by arshad49

Correction of atomic masses : The mendeleev's periodic table could predict errors in the atomic masses of certain elements were corrected. For example, atomic mass of beryllium was corrected from 13.5 to 9.Mar 9, 2018

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