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Write down any two advantages of Mendele...

Write down any two advantages of Mendeleev's periodic table.

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a) Elements were classified in such a way that element of similar properties were placed in the same group.
b) Columns were left vacant for elements which were not known at the time and their properties were also predicted.
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V PUBLICATION-PERIODIC TABLE-QUESTION BANK
  1. Complete the table.

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  2. Lithium and oxygen are included in the same period in the periodic tab...

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  3. Write down any two advantages of Mendeleev's periodic table.

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  4. Element X, Y, Z and its electronic configuration are shown in the giv...

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  5. Electronic configuration of a few elements are given (Symbols are not ...

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  6. The amount of energy required to liberate the most loosely, bonded ele...

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  7. Atomic number of the elements X and Y are 13 and 16 respectively. ...

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  8. Complete the given statements by choosing the appropriate answer from ...

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  9. Electronic configuration of an atom of an element is 2, 8, 18, 7. a)...

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  10. The element A belongs to second period, 17th group and B belongs to se...

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  11. i) Which among the following is not characteristics of alkaline earth ...

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  12. Bohr's model of atom of an element is given below. a) To which perio...

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  13. In an atom of the element X there are three shells and 2 electrons are...

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  14. Three atoms are given: underset(11)\Na, underset(15)\P, underset(17)...

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  15. Electronic configuration of elements A, B, C, and D are given. (Symbol...

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  16. Magnesium and chlorine are two elements in the third period in the per...

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  17. The position of the element A, B and C in the periodic table are given...

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  18. Complete the table.

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  19. a) How do second group elements in the periodic table differ from 17th...

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  20. A portion of the periodic table is given below (Hint: The atomic num...

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