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Among the elements of the third period (...

Among the elements of the third period (Na to Ar), pick out the element
that is the most reactive metal.

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With just one valence electron alkali metals not only happen to be the most reactive but also the most electropositive in their period. In the third period sodium (Na) shall be the most reactive metal.
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VMC MODULES ENGLISH-PERIODIC PROPERTIES OF ELEMENTS -Solved Examples
  1. Among the elements of the third period (Na to Ar), pick out the elemen...

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  2. Among the elements of the third period (Na to Ar), pick out the elemen...

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  3. Among the elements of the third period (Na to Ar), pick out the elemen...

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  4. Of the two elements given in each of the following cases, choose the e...

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  5. Of the two elements given in each of the following cases, choose the e...

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

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  7. Arrange the following elements in the increasing order of non metallic...

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  8. The first (IE(1)) and the second (IE(2)) ionisation energies (kJ mol^(...

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  9. The first (IE(1)) and the second (IE(2)) ionisation energies (kJ mol^(...

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  10. The first (IE(1)) and the second (IE(2)) ionisation energies (kJ mol^(...

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  11. The first(IE(1)) and second (IE(2))Ionization energies (KJ/mol) of a f...

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  12. Ionic radii of (1) Ti^(4+) lt Mn^(7+) (2) ""^(35)Cl^(-) lt ""^(37)...

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  13. Which one of the following indicates the correct order of atomic size?...

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  14. If Aufbau rule is not followed, K-19 will be placed in ….. Block (1)...

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  15. Period to which cadmium belongs is

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  16. An element M has an atomic number 9 and mass number 19. Its ion will...

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  17. ""^(238)U(IIIB) changes to ""^(234)Th by emission of alpha-particle. ...

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  18. Which of the following transitions involves maximum energy? (1) M^(-...

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  19. The process requiring absorption of energy is (1) F to F^(-) (2) Cl ...

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  20. The elecron affinity of chlorine is 3. 7 eV. How much energy in kcal i...

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