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Write the electronic configuration and t...

Write the electronic configuration and the block to which an element with Z= 90 belongs

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`[Rn] 6s^(2) 7s^(2)` , f-block element
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PRADEEP-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -Problems For Practice
  1. An element X with Z = 112 has been recently discovered. What is the el...

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  2. Arrange the following elements in the increasing order of metallic c...

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  3. Write the electronic configuration and the block to which an element ...

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  4. How do the electronic configuration of the elements with Z= 107 - 109...

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  5. Which one of the following pairs would have a larger size ? Explai...

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  6. Arrange the following in order of increasing radii ? (i) I, I^(+) ,...

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  7. Select from each group the species which has the smallest radius...

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  8. Calculate the energy in joules required to convert all the atoms of so...

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  9. The ionization potential of hydrogen is 13.60 eV. Calculate the energy...

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  10. The first and second ionization potentials of helium atoms are 24.58 e...

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  11. Arrange the following in the order of increasing ionization enthalp...

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  12. The electron configuration of some neutral atoms are given below : ...

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  13. Which one among the following elements has the lowest first ion...

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  14. Which of the following pairs of elements would you expect to have lowe...

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  15. For each of the following pairs predict which one has lower firs...

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  16. Predict which atom in each of the following pairs has the great...

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  17. From each set, choose the atom which has the largest ionization enthal...

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  18. The electron affinity of bromine is 3.36 eV . How much energy in ...

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  19. The amount of energy released when one million atoms of iodine ar...

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  20. Arrange the elements with the following electronic configuration ...

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