Question

The placement of elements in Mendeleev's periodic table helped in correcting the atomic masses of some elements. Give examples to those elements​

Answer 1

Answer:

Correction of atomic masses: Placement of elements in Mendeleev's periodic table helped in correcting the atomic masses of certain elements. For example, the atomic mass of beryllium was corrected from 13.5 to 9. Similarly, atomic masses of indium, gold, platinum Page 3 etc.,