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Name unknown elements at the time of Men...

Name unknown elements at the time of Mendeleef.

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Unknown elements at the time of mendeleef are Germanium (Eka silicon), Scandium (Eka Aluminium), Gallium (Eka Boron).
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-Very Short Answer Questions
  1. Among the elements B, Al, C and Si (d) Which has the most metallic c...

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  2. Consider the elements N, P, O and S and arrange them in order of : ...

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  3. Consider the elements N, P, O and S and arrange them in order of : ...

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  4. Consider the elements N, P, O and S and arrange them in order of : ...

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  5. Arrange in the given order: Increasing EA : O,S and Se

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  6. Arrange in the given order: Increasing IE1:Na , K and Rb

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  7. Arrange in the given order: (c ) Increasing radius: I^(-), I^(+) and...

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  8. Arrange in the given order: Increasing electronegativity :F , Cl , B...

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  9. Arrange in the given order: (e ) Increasing EA : F, Cl, Br, I

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  10. Arrange in the given order: (f) Increasing radius : Fe, Fe^(+2), Fe^...

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  11. Name the element with highest ionization enthalpy.

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  12. Name the family with highest value of ionization enthalpy.

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  13. Which element possesses highest electron affinity?

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  14. Name unknown elements at the time of Mendeleef.

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  15. Name any two typical elements.

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  16. Name any two bridge elements.

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  17. Name two pairs showing diagonal relationship.

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  18. Name two transition elements.

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  19. Name two rare earths.

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  20. Name two transuranic elements.

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