Question

The modern periodic table has been evolved
through the early attempts of Dobereiner,
Newland and Mendeleev. List one advantage
and one limitation of all the three attempts.
​

Answer 1

Explanation:

Dobereiner: Dobereiner gave an idea of classification of elements in the form of triads. Limitation: He could not able to arrange all element present that time. ... Newland arranged elements in order of increasing atomic mass and encouraged other chemists to corrleate the properties of elements with their atomic masses.

Hope this helps

Answer 2

Answer:

if u like it mark me as brilliant

Explanation:

Dobereiner gave an idea of classification of elements in the form of triads. Limitation: He could not able to arrange all element present that time. Newland arranged elements in order of increasing atomic mass and encouraged other chemists to corrleate the properties of elements with their atomic masses.