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Science Test Space
Class 8
Periodic classification of elements
The different types of periodic table and it's elements
1.
Dobereiner's law: fill in the blanks
Question:
2
m.
Fill in the blanks:
1.
__________ was the first element in Dobereiner triad group\(1\).
2.
__________ was the last element in Dobereiner triad group\(2\).
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