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The list of the elements present in the ...

The list of the elements present in the same period but in different groups is given :
12 13 14 15 16 17 18
(a) Do these groups represent modern periodic table ?
(b) Which element will belong to oxygen family ?
(c) Which element will not take part in chemical combination ?
(d) The elements belonging to which groups will form ionic bonds most readily ?

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(a) Yes, these groups of elements represent modern periodic table.
(b) The element present in group 16 belongs to oxygen family.
(c) The element included in group 18 (noble gas elements) will not take part in chemical combination.
(d) The elements belonging to group 1 and group 17 will form ionic bonds most readily.
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DINESH PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-Long Answer Questions
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  2. 'The atomic number of Cl is 17. On the basis of this information, answ...

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  3. The list of the elements present in the same period but in different g...

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  4. An element E has following electronic configuration : {:(K,L,M,),(2,...

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  5. From the part of the periodic table given, answer the following questi...

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  6. Atomic number of an element is 16. Predict. (i) the number of valenc...

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  7. (a) How are the following related ? (i) Number of valence electrons ...

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  8. The position of some elements A, B, C, D, E, F, and G in the Modern Pe...

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  9. (a) The modern periodic table has been evolved through the early ...

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  10. An element is placed in 2^("nd") group and 3^("rd") period of the peri...

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  11. An element X (atomic number 17) reacts with an element Y (atomic numbe...

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  12. Atomic number of few elements are given below 10, 20, 7, 14 (a) Iden...

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  13. (a) In this ladder (Figure) symbols of elements are jumbled up. Rearra...

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  14. Complete the following crossword puzzle (Figure) Across (1) An ele...

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  15. Mendeleev predicted the existence of certain elements not known at tha...

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  16. (a) Electropositive nature of the element(s) increases down the group ...

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  17. An element X which is a yellow solid at room temperature shows catenat...

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  18. An element X of group 15 exists as diatomic molecule and combines with...

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  19. Which group of elements could be placed in mendeleev's periodic table ...

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  20. Give an account of the process adopted by Mendeleev for the classifica...

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