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‘Eka' elements are...

‘Eka' elements are

A

Precious elements

B

Available in earth

C

Name given by Mendeleeff for missing elements

D

Elements in lanthanides

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VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS-THE PERIODIC TABLES-EXERCISE
  1. The metallic character while non metallic character along a period.

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  2. "The law states hat the physical and chemical properties of the ...

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  3. ‘Eka' elements are

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  4. Which of the following relation is correct ?

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  5. The distance between the nucleus and the outer most orbit is called

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  6. M^+ + IE2 =M^(+2)(g)+e^- This represents

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  7. In a group I.E decreases due to

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  8. Which of the following is the property of bonded atom ?

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  9. Which of the following is the limitation is Mendeleeff's periodic tabl...

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  10. Periodicity is observed in periodic table due to reappearance of simil...

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  11. One of the following statements is not true. It is

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  12. The atomic radius decreases in a period due to

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  13. Valency of an element indicates

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  14. The formula of oxides and chloride of Eka-Silicon is

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  15. Guess the atomic weight of middle element if the atomic weights ...

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  16. Ea2O3: EsO2 : GeO2 [ Ea = Eka aluminium, Es= Eka silicon]

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  17. Mendeleeff said about eka-aluminium "If I hold it in my hand, it will ...

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  18. Which of the following elements are not available at the time of Mende...

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  19. Which of the following element does not contain '3s' orbital ?

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  20. Why are lanthanides and actinides placed separately at the bot...

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