Profile
Settings
Refer your friends
Sign out
Answer:
- Mendeleev arranged the periodic table placing the elements on the basis of their atomic weight.
- One problem faced with this periodic table is that it did not include Noble gases in it.
- So, the modern periodic table was designed on the basis of atomic number, including the noble gases.
- Merits of Mendeleev’s table:
- Elements with similar properties were placed together.
- For some elements, correct mass was assigned through calculations.
- New elements could be predicted through this arrangement.
- Ex., Eka-boron, Eka-aluminium, and Eka-silicon were predicted as they had similar properties as boron, aluminium, and silicon respectively.
