How was the work of Newlands similar to that of Mendeleev on the periodic table?
They both arranged the elements in order of increasing atomic mass.
They both arranged elements that had similar properties into groups.
They both predicted the positions of undiscovered elements on the table.
They both placed the relative atomic mass of each element on the table.

The work of Newlands similar to that of Mendeleev on the periodic table was that they both arranged the elements in order of increasing atomic mass.

Hence, Option (A) is correct answer.

What is Newland's Law of Octaves ?

Newland's Law of Octaves states that if the chemical elements are arranged in increasing order of atomic mass, every eighth element's properties are similar to that of the first element.

What is Mendeleev's Periodic Law ?

Mendeleev's Periodic Law states that the chemical and physical properties of elements are a periodic function of their atomic masses.

Now, lets check all options one by one

Option (A): They both arranged the elements in order of increasing atomic mass.

Mendeleev arranged the elements in rows and column of a table in order of their increasing atomic mass. Newland arranged the elements in order of their increasing atomic mass that every eighth element's properties are similar to that of the first element.

So, it is correct option.

Option (B): They both arranged elements that had similar properties into groups.

Newlands arranged the elements that every eighth element's properties are similar to that of the first element. Mendeleev arranged the elements with similar properties in vertical column (group).

So, it is incorrect option.

Option (C): They both predicted the positions of undiscovered elements on the table.

Only Mendeleev predicted the position of undiscovered elements that is Gallium (eka-Aluminium) and Scandium (eka-Boron).

So, it is incorrect option.

Option (D): They both placed the relative atomic mass of each element on the table.

Only Mendeleev placed the relative atomic mass of each element on the table.

So, it is incorrect option.

Thus, we can say that The work of Newlands similar to that of Mendeleev on the periodic table was that they both arranged the elements in order of increasing atomic mass.

Hence, Option (A) is correct answer.

Learn more about the Periodic Table here: https://brainly.com/question/15987580

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