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Atomic sizes generally increase as we co...

Atomic sizes generally increase as we come down a group of the periodic table. But in the 4th group of the periodic table, Zr and Hf have almost the same atomic sizes. Why?

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A N EXCEL PUBLICATION-D AND F - BLOCK ELEMENTS-QUESTION BANK
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  2. Transition elements are d - block elements and inner transition elemen...

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  4. Transition elements are d - block elements and inner transition elemen...

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  5. Transition elements are d- block elements Write any four characteristi...

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  6. transition elements are 'd' block elements. Cr^(2+) and Mn^(3+) have d...

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  7. Which of the following is not a lanthanoid element?

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  8. Zr and Hf are having similar chemical properties. This is due to.

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  9. Magnetic moments arise due to the presence of unpaired electrons’ Calc...

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  10. Transition metal ions are generally coloured. Why?

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  11. A transition element is defined as one which has incompletely filled d...

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  12. Silver atom has completely-filled d-orbital (4d^105 s^1) in its groun...

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  13. Why are d block elements called transition elements?

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  14. Transition elements generally have high enthalpy of atomisation and th...

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  15. In the 3d series, the .enthalpy of atomisation of zinc is the lowest (...

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  16. Name a transition element which does not exhibit variable oxidation st...

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  17. Transition elements generally have high enthalpy of atomisation and th...

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  18. Rationalise the following observations Scandium salts are white/colo...

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  19. Atomic sizes generally increase as we come down a group of the periodi...

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  20. Rationalise the following observations Zinc salts are colourless, Cu^(...

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