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- Dobereiner's law of triads states that if three elements are arranged in the increasing order of their atomic masses, the atomic mass of intermediate (middle) element is similar to the average of the atomic masses of the first and the third element.
- Dobereiner's triad discarded because it failed to arrange all the known elements in the form of triads.
- (i) This classification worked well for lighter elements only up to Ca. (ii) This classification gave us a relation between the properties of the elements and their atomic masses. (iii) It was shown by this classification for the first time that there exists a periodicity in the properties of the elements.
- (i) This classification worked well for lighter elements only up to Ca. (ii) This classification gave us a relation between the properties of the elements and their atomic masses. (iii) It was shown by this classification for the first time that there exists a periodicity in the properties of the elements.
- It was discarded because:
- This classification did not work with heavier elements,i.e. those lying beyond calcium.
- Newland adjusted two elements cobalt and nickel in the same slot and these were placed in the same column as flourine , chlorine, and bromine which have different properties than these elements.
Brainlist please...
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Kabir was found by a Muslim weaver Niru and his wife Nima, abandoned on River Ganges. As he grew up, he took up weaving, like his foster father, as his profession. He always had a bent towards religion and God.
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