Question

Which of the given statement(s) are correct in accordance to Doberenier traids?

• A. The elements are written in increasing order of atomic mass.
• B. The mass of middle element was roughly the average of atomic masses of other two elements.
• C. Elements in the triads show similar properties.
• D. All of the above.

Answer 1

The correct option is D All of the above.

Döbereiner showed that when the three elements in a triad were arranged in the order of increasing atomic masses; the atomic mass of the middle element was roughly the average of the atomic masses of the other two elements. Moroever, elements in the traids show similar properties.