Explain merits and demerits of mendeleev's periodic table.
Answers
Answered by
2
Answer:
Demerits of Mendeleev Periodic Table. He was unable to locate hydrogen in the periodic table. Increase in atomic mass was not regular while moving from one element to another. Hence, the number of elements yet to be discovered was not predictable.
Answered by
0
Answer:
Merits:- 1)He divided periodic table in 7pd. and 18 groups.
2)He left some vaccant spaces for unknown elements in their periodic properties and already explained and predicted it's properties.
3)He arranged all the 64 elements known at that time.
Demerits:-1)He cannot able to explain about isotopes.
2)He cannot able to explain about zero group.
3)He cannot able to explain that why some elements with more mass no. are putted before some less mass no. of elements.
Similar questions