Which of the following forms Dobereiner's triad) (d) Be 3. O 20 (b) Na, Mg, Zn fe (c) Sn, Zn , Fe (d) H, Li, Be
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Answer:
option d) is correct.
Explanation:
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H, Li, B forms a part of Dobereiner's traid.
Option d
Explanation:
- Dobereiner's law states the all the elements then discovered could be easily divided into groups of two.
- The mass number of the middle element is the average of the mass of the other two elements. It became a classical way to divide the different elements.
- However it later on became very vague and difficult to study as more and more elements were being discovered as they do not fit into traids.
To know more about Dobereiner's traid,
Give an example of dobereiner's traid. - Brainly.in
https://brainly.in/question/15704555
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