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The distance between the centre of its...

The distance between the centre of its nucleus and the outermost shell containing the valence electron is called ____________ .

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atomic radius
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SURA PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS -ADDITIONAL QUESTIONS & ANSWERS ( FILL IN THE BLANKS )
  1. is the metal widely used for anodizing .

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  2. Transition metals fall under groups to .

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  3. The distance between the centre of its nucleus and the outermost sh...

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  4. Atomic radius, ionic radius, electron affinity are called properties ...

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  5. The atomic radius of non-metallic elements is known as .

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  6. Along the period , from left to righ , the atomic radius of the elemen...

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  7. Along the groups , from the top to bottom, the atomic radius .

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  8. As the shell number increases, the distance between the valence shell...

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  9. More and more positive charges impose a over the electrons.

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  10. is also called ionisation enthalpy.

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  11. Ions are formed when an atom electrons.

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  12. The size of a cation is always than its corresponding neutral atom.

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  13. and lose the single electron from their outermost energy level teo fo...

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  14. Fluorine and chlorine become negative ions by .

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  15. Ionic radii decreases along the .

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  16. is the minimum energy required to remove an electron from a gaseous ...

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  17. If the difference in electro negativity between two elements is less ...

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  18. show no tendency to accept electrons.

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  19. The tendency to attract a shared pair of electrons towards itself in ...

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  20. is the science of extracting metals from ores and modifyig metals...

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