Question

Give one word answers [5] (i) Scientist who left gaps in the periodic table. (ii) Classification in which elements are grouped in a group of three. (iii) Classification in which first and eighth element are similar. (iv) Law which states that the properties of elements are a periodic function of their atomic masses. (v) A table or chart in which elements are arranged in periods or gro​

Answer 1

Answer:

1. mendeleev

2. dobereiner traid

3. law of octave

4. mendeleev's periodic table

5. modern periodic table

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