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Why does S^(-) ion not accept the second...

Why does `S^(-)` ion not accept the second electron readily?

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Incoming electron faces repuls ions from the already present electron in the outer shell of s– ion.
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A: CN^(-) is an acid ligand. R: CN^(-) accepts electron pair also.

VMC MODULES ENGLISH-PERIODIC PROPERTIES OF ELEMENTS -Practice Exercise
  1. Which will have a higher value of electronegativity for fluorine, the ...

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  2. Is it possible to calculate the electronegativity of an element if its...

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  3. Why does caesium carbonate not decompose yet lithium carbonate does?

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  4. Least soluble carbonate among alkaline earth metals will be?

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  5. Predict the block, period and group to which tin belongs.

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  6. What will be the value of screening constant (sigma) for the sodium at...

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  7. Why is the radius of aluminium and gallium almost similar?

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  8. Why do noble gases have comparatively large atomic sizes?

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  9. Why does phosphorous has higher ionization enthalpy than sulphur?

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  10. Why do metals in the 5d transition series (for example, Pt, Au, Ir etc...

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  11. What will be the downward trend of ionization energy in group 13?

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  12. Why are the electron affinities of alkaline earth metals nearly zero?

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  13. Why does S^(-) ion not accept the second electron readily?

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  14. Why phosphorous has higher electron affinity than nitrogen?

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  15. Sodium (11) belongs to which group and period of periodic table.

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  16. Which will have a higher value of electronegativity for fluorine, the ...

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  17. Is it possible to calculate the electronegativity of an element if its...

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  18. Lithium (3) belongs to which group and period of periodic table.

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  19. Least soluble carbonate among alkaline earth metals will be?

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  20. Fluorine (9) belongs to which group and period of periodic table.

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