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Arrange the following in decreasing atom...

Arrange the following in decreasing atomic size :
(i) Na, Mg, K (ii) N, F, O (iii) N, S, P

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(i) K, Na, Mg (ii) N , O, F (iii) P, S, N.
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DINESH PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-Very Short Answer Questions
  1. Indicate the elements which belong to the same group from their atomic...

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  2. Arrange the following in decreasing atomic size : (i) Na, Mg, K (ii...

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  3. Give the name and electronic configuration of second alkali metal.

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  4. What is the similarity in the electronic configuration of Mg, Ca and S...

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  5. Name the members of alkaline earth family. Which out of them is radioa...

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  6. The two isotopes of chlorine have atomic mass 35 u and 37 u. Should th...

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  7. An element ''X'' has mass number 35 and number of neutrons is 18. Iden...

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  8. How does metallic character of the elements vary (i) in a group (ii) i...

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  9. Name three elements which behave as metalloids.

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  10. Which property do all the elements possess that is present in the same...

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  11. Which common property do all the elements present in the same group ha...

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  12. Write the electronic configuration of the element present in the third...

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  13. What is the basic difference in the electronic configuration of the el...

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  14. Three elements X, Y and Z belong to 17th group but to 2nd, 3rd and 4th...

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  15. Element 'Y' with atomic number 3 combines with element 'A' with atomic...

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  16. Name two other elements which belong to the same family as (i) fluor...

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  17. On the basis of the periodic classification, identify each set belongi...

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  18. The formula of magnesium oxide is MgO. Write the formula of magnesium ...

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  19. The electronic configuration of an element is 2, 8, 7. What is its exp...

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  20. Two elements A and B belong to rhe same period. What is common in them...

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