How did mendeleaf corrected the atomic of beryllium as 9 ?
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Atomic mass of beryllium was 13.5 but he tried to convert the atomic mass into atomic number is 9
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The mendeleev’s periodic table could predict errors in the atomic masses of certain elements were corrected. atomic mass of beryllium was corrected from 13.5 to 9. with the help of this table atomic masses of indium, gold, platinum etc. were corrected.
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