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The outermost electronic configuration o...

The outermost electronic configuration of most electropositive element is

A

`ns^(1)`

B

`ns^(2)np^(2)`

C

`ns^(2)np^(3)`

D

`ns^(2)np^(5)`

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The correct Answer is:
A
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NARAYNA-CLASSIFICATION OF ELEMENTS AND PERIODICITY -EXERCISE - 1 (H.W)
  1. The ionisation potential and electron affinity of an element "X" are 2...

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  2. Which of the following does not be considered as a fixed quantity A)El...

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  3. The electronegativity of K=0.8 and Cl=3.0. The type of bond formed bet...

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  4. An element "X" has IP=1681 kJ/mole and EA=-333 kJ/mole then its electr...

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  5. Which of the following has zero electronegativity

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  6. Which of the following elements posses zero electron affinity (theriot...

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  7. The electronegativities of two elements A and B are 2.1 and 1.8. Then ...

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  8. In a compound XY, the electronegativity difference between X and Y is ...

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  9. The stable oxide state of Thallium, a III A group element is

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  10. The stable oxidation sate (+8) is exhibited by

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  11. The formula of the compound formed by the pair of elements Al & S is:

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  12. The oxidation state and valency of Al in [AlCl (H(2)O)(5)]^(2+)

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  13. An element has nine positive charges in its nucleus its common oxidati...

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  14. The outermost electronic configuration of most electropositive element...

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  15. The tendency if an element to lose an electron is called

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  16. Oxide that is most acidic

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  17. Three elements, X, Y and Z belong to the same period. Their oxides are...

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  18. The elements 'X', 'Y' and 'Z' form oxides which are acidic, basic and ...

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  19. Chemical similarity between Be and Al is due to

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  20. Pair of ions with polarising power

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