Question

how does the Mendeleev periodic table is helpful in preparing the modern periodic table​

Answer 1

Answer:

I think it is mostly use to arrange in groups and periods.

Answer 2

lets solve for it,

Explanation:

The Mandeleev periodic table was an early periodic table. The properties of the Mandeleev periodic table are:

1. It is based on the atomic mass of each element

2. He left some gaps for the elements to be discovered

3. The elements in a particular group showed similar properties.

whereas, the Modern periodic table was formed by modifying the mandeleev periodic table. it helped in preparing the modern periodic table:

a. It is based on the increasing atomic numbers of the elements.

b.The modern periodic table could justify and help to fill the gaps left in the mandeleev periodic table.

c. The idea of mandleev that the elements in same group have similar properties was the basis for the arrangement of the elements in the groups and periods in the modern periodic table.