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Name the anomalous pairs of elements in the Mendeleev's periodic table.

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In Mendeleev.s periodic table anamalous pairs are the elements whose atomic weights increasing order is reversed.
Eg (1) `{:(Te,I),(127.6,126.9):}` (2) `{:(Co,Ni),(58.93,58.69):}`
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-Very Short Answer Questions
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  2. State and give one example for Dobereiner's law of triads and Newland'...

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  3. Name the anomalous pairs of elements in the Mendeleev's periodic table...

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  4. How does atomic radius vary in a period and in a group? How do you exp...

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  5. Among N^(-3), O^(-2), F^(-), Na^(+), Mg^(+2) and Al^(+3) (a) What is...

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  6. Among N^(-3), O^(-2), F^(-), Na^(+), Mg^(+2) and Al^(+3) (b) Arrange...

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  7. What is the significance of the term isolated gaseous atom while defin...

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  8. Energy of an electron in the ground state of the hydrogen atom is -2.1...

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  9. Ionization enthalpy [IE1] of O is less than that of N - explain.

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  10. Which in each pair of elements has a more negative electron gain entha...

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  11. Which in each pair of elements has a more negative electron gain entha...

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  12. What are the major differences between metals and non-metals?

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  13. Use the periodic table to identify elements. (a) With 5 electrons in...

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  14. Use the periodic table to identify elements. (b) Would tend to lose ...

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  15. Use the periodic table to identify elements. (c ) Would tend to gain...

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  16. Given the outer electronic configuration of s,p,d and f-block elements...

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  17. Write the increasing order of the metalic character among the elements...

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  18. Write the correct increasing order of non-metallic character for B,C,N...

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  19. Write the correct increasing order of chemical reactivity in terms of ...

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