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What do mean by the statement-covalent r...

What do mean by the statement-covalent radius of H-atom is 0l.37 Å?

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It indicates that one-half of the internuclear distance between two bonded H-atoms in `H_(2)` molecule is 0.37 Å.
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CHHAYA PUBLICATION-CLASSIFICATION OF ELEMENTS & PERIODICITY IN PROPERTIES-QUESTION-ANSWER ZONE FOR BOARD EXAMINATION
  1. Arrange according to the instructions given the in the bracker: (1) O,...

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  2. Name the elements having highest and lowest ionisation enthalpy.

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  3. What do mean by the statement-covalent radius of H-atom is 0l.37 Å?

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  4. indicate the similarity observed in the electron-gain enthalpy values ...

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  5. Why is the size F^(-) smaller tha that of O^(2-) ion?

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  6. Compare the radii of K^(+) and Cl^(-) ions (each contain the same numb...

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  7. What do you underrstand by negative value of electro-gain enthalpy of ...

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  8. Electronic configuration of the atom of an element is 1s^(2)2s^(2)2p^(...

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  9. Atomic numbers of elements A,B and C are 10,13, & 17 respectively. (1)...

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  10. A, B and C are three elements with atomic numbers 17,18 and 20 respect...

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  11. Outer electronic configuration of 4 elements are as given below follow...

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  12. Write electronic configuration of the element with atomic number 35. w...

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  13. Justify the mentioning two reasons, the inclusion of Ca and Mg in the ...

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  14. Cu, Ag & Au are regarded as transition elements. Why?

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  15. Write down electronic configuration of the element having atomic numbe...

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  16. Can Cu (At. No. 29) and Zn (At. No. 30) be called transition elements?...

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  17. Atomic number of three elements A,B and C are 8, 13 and 17 respectivel...

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  18. Why is atomic size of Ca^(2+) smaller than that of K^(+) ?

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  19. Atomic radius of chlorine atom is 0.99 Å but ionic radius of chloride ...

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  20. First ionisation energy of elements increases with atomic numbers of t...

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