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Why do alkaline earth metals always form...

Why do alkaline earth metals always form dipositive ions ?

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(a) F (b) O (c) `Cl^(-)`
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MOTION-PERIODIC TABLE -Exercise - 3 | Level-I
  1. On the Pauling's electronegativity scale, which element is next to F ?

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  2. Among the following which species is/are paramagnetic (i) Sr^(2+) ...

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  3. Why do alkaline earth metals always form dipositive ions ?

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  4. State giving reasons which one have higher value (a) IE(1) of F or C...

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  5. Explain why a few elements such as Be(+0.6),N(+0.3) & He(+0.6) have po...

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  6. From among the elements, choose : Cl, Br, F, Al, C, Li, Cs & Xe The...

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  7. From among the elements, choose : Cl, Br, F, Al, C, Li, Cs & Xe The...

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  8. From among the elements, choose : Cl, Br, F, Al, C, Li, Cs & Xe The...

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  9. From among the elements, choose : Cl, Br, F, Al, C, Li, Cs & Xe The...

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  10. From among the elements, choose : Cl, Br, F, Al, C, Li, Cs & Xe The ...

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  11. Which property will increase and which will decrease for IA group as w...

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  12. The IE do not follow a regular trend in II & III periods with increasi...

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  13. Arrange in decreasing order of atomic size: Na,Cs, Mg, Si, Cl

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  14. In the ionic ompound KF, the K^(+) and F^(-) ions are found to have pa...

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  15. Which will have a higher boiling point, Br(2) or ICl, & why ?

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  16. Which bond in each pair is more polar (a) P-CI or P - Br (b) S -CI o...

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  17. Arrange noble gases, in the increasing order of b.p.

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  18. Calculate E.N. of chlorine atom on Pauling scale if I.E. of CI^(-) is ...

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  19. Calculate the electronegativity of fluorine from the following data: ...

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  20. The IE values of Al((g)) = Al^(+) +e is 577.5 kJ mol^(-) and DeltaH fo...

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