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metal is alloyed with gold and silver ...

____________ metal is alloyed with gold and silver for making coins and jewels.

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Copper
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SURA PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS -ADDITIONAL QUESTIONS & ANSWERS ( FILL IN THE BLANKS )
  1. The black oxide of copper is

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  2. Iron containing 2-4.5% of carbon is called

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  3. metal is alloyed with gold and silver for making coins and jewels.

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  4. is used for dental filling .

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  5. Brass is an alloy of and .

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  6. is the metal widely used for anodizing .

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  7. Transition metals fall under groups to .

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

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

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

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

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

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

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

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  15. is also called ionisation enthalpy.

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  16. Ions are formed when an atom electrons.

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

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

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  19. Fluorine and chlorine become negative ions by .

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  20. Ionic radii decreases along the .

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