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CHETANA PUBLICATION-Periodic Classifications of ELements-EXAMPLE
- What type of relationship of elements was examined by mendeleev?
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- How many elements were known when Mendeleev started his work?
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- What is meant by periodicity according to Mendeleev?
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- What is Mendeleev's Periodic law?
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- State the law on which modern periodic table is based
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- How many groups are there in the modern periodic table?
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- What is the number of valence electrons in an element of group 1 and g...
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- What is the trend in the variation of valency while going down a group...
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- Which pair of elements do you think will have similar properties? : So...
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- State the merits of Mendeleev's periodic table.
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- What are the demerits of Mendeleev's periodic table?
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- Merits of Modern periodic table over Mendeleev's periodic table
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- What is the relationship between the electronic configuration of an el...
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- The atomic number of beryllium is 4 while that of oxygen is 8.Write do...
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- Write the electronic configuration and valency of first 20 elements.
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- What is the periodic trend in the variation of valency while going fro...
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- What is the periodic trend in the variation of valency while going dow...
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- Comparative study of all the four-blocks of Modern periodic table
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- How could the modern periodic Table remove various anomallies of Mendl...
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- Answer the equation based on the given data To which group do the el...
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