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Which period is called an incomplete per...

Which period is called an incomplete period of Mendeleev's periodic table and why?

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CHHAYA PUBLICATION-CLASSIFICATION OF ELEMENTS & PERIODICITY IN PROPERTIES-SHORT-TYPE QUESTIONS
  1. What are transition elements? How many transition elements are present...

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  2. Which one is not regarded as a transition element between Cu and Zn? W...

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  3. Which period is called an incomplete period of Mendeleev's periodic ta...

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  4. "All d-block elements are non transition elements"- Explain.

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  5. Which elements were discovered by Mendeleev's periodic table?

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  6. Give examples where the atomic mass of the elements have been correcte...

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  7. What types of elements give colouration in flame test and why?

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  8. What are representative elements? Give the reason for their chemical r...

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  9. Describe the method of nomenclature of transfermium elements. Give the...

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  10. Mention the importance of subgroup in the mendeleev's periodic table.

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  11. Write two important characteristics of s-block elements.

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  12. Write the names and symbols of two terminal elements of first transiti...

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  13. Zn, Cd and Hg are d-block elements but they are not regarded as transi...

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  14. Identify the alkali metal, alkaline earth metal and chalcogen from the...

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  15. Electronic configuration of the outermost orbit of an element is 3s^(2...

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  16. Write the group number of s,p and d-block elements in periodic table.

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  17. Arrange the element with atomic number 12,17,19,23 and 25 into s,p and...

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  18. "The properties of an element depend on the electronic configuration o...

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  19. Justify the position of zero group in Mendeleev's periodic table.

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  20. (a) "Atomic number of two elements ar 9 and 17 respectively. Both elem...

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