Question

write main point about mandeleev's periodic table? ​

Answer 1

Explanation:

it showed the periodicity in elements

mass was the functional unit of periodic table

it consisted 8 grps with sub divisions

hope it helps

mark me as brainliest!!!!!

Answer 2

Explanation:

1) in mandeleev's periodic table , the elements are arranged in the increasing order of atomic mass.

2) the position of the elements was in accordance with atomic mass.

3) the position of isotopes was not justified.

hope it will help you.....✌️