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Select the isoelectronic species from th...

Select the isoelectronic species from the following:
`O^(2-), F^-, Na^+ ,Mg^(2+)`

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`O^(-2),Mg^(2+)` and `Na^+` are isoelectronic as they contain 10 elements each.
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A N EXCEL PUBLICATION-CLASSIFICATION TO ELEMENTS AND PERIODICITY IN PROPERTIES-QUESTION BANK
  1. Garph showing the variation of atomic radius with atomic number for al...

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  2. What is meant by isoelectronic species ?

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  3. Select the isoelectronic species from the following: O^(2-), F^-, Na...

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  4. State the modern periodic law

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  5. Moseley modified Mendeleev's periodic law based on his observation on ...

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  6. Analyse the following graph between ionisation enthalpy and atomic num...

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  7. Electron gain enthalphy is the amount of energy involved when an isola...

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  8. Electron gain enthalphy is the amount of energy involved when an isola...

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  9. Identify the largest and smallest species from those given below : O...

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  10. The reactivity of an element is very much related to its inoization en...

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  11. IUPAC has made some recommendations to name elements with atomic numbe...

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  12. Electronegativity is the ability of an atom to attract a shared pair o...

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  13. Give the reason for the following: Phosphorus froms PCl5 whille nitro...

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  14. Give the reason for the following: The first ionisation enthalpy of ox...

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  15. The first member of a group of elements in the s an dp block differs f...

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  16. Write the general outer electronic configuration of d-block elements.

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  17. The first ionization enthalpy of magnesium is higher than that of sodi...

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  18. Give any two characteristics of transition elements.

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  19. Does the ionisation enthalpy decreases along a group ? Give reasion

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  20. Name of elements with atomic numbers greater than 100 are given by IUP...

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