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Complete the following statements : (a...

Complete the following statements :
(a) The are `"…………….."` periods in the long form of the periodic table.
(b) The s block element having highest atomic mass is `"…………….."`
(c ) The elements Cu Ag and Au are called `"……………"` metals.

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`(a) 7 (b) Ra (c ) ` Coinage.
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MODERN PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -PRACTICE PROBLEMS
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  2. How many element are present in the third period of the p-block elemen...

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  3. Complete the following statements : (a) The are "…………….." periods in...

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  4. An element X belongs to the third period of the p- block elements. It ...

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  5. Which family of elements has the electronic configuration ns ^(2) np ^...

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  6. What would be the IUPAC name and symbol for the element with atomic nu...

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  7. Arrange the following elements in decreasing order of metallic charact...

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  8. Arrange the following elements in the increasing order of non- metalli...

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  9. Rn (Z=86) is the last noble gas discovered. Predict what wil be the at...

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  10. Arrange the following in order of increasing radii: (i)I, I^(+)I^(-)...

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  11. For each of the following pairs, state which one is large in size: (...

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  12. Account for the difference in size of Na ^(+)[ 0.095nm] and mg ^(2+) [...

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  13. Arrange each pair of ions in order of increasing ionic radius : (a) ...

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  14. A boy has reported the radii of Cu, Cu ^(+) and Cu ^(2+) as 0.096 nm, ...

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  15. Arrange the following ions in the order of increasing size : Be^(2+),...

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  16. Which of the following species has the smallest size? (a) K^(o+), Sr...

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  17. The electronic configuration for some neutral atoms are given below. ...

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  18. For each of the following pairs which has greater IE and why? a. Li,...

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  19. The ionisation potential of hydrogen is 13.60 eV. Calculate the energy...

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  20. Among the elements Li, K,Ca, S and Kr , which one is expected to have ...

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