1.the position of isotopes could not be explained
2.wrong order of atomic masses of some elements could not be explained.
3.A correct position could not be assigned to hydrogen in the periodic table.
hope it helps...
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Answers & Comments
1.the position of isotopes could not be explained
2.wrong order of atomic masses of some elements could not be explained.
3.A correct position could not be assigned to hydrogen in the periodic table.
hope it helps...
mark me the brainliest if u want to...
thnks