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Why does a transition series contains 10...

Why does a transition series contains 10 elements?

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There are five d-orbitals in an energy level and each orbital can accommodate two electrons. As we move from one element to the next, an electron is added to a d-orbital and for complete filling of the fived-orbitals, 10 electrons are needed. Hence, each transition series contains 10 elements.
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ICSE-d- AND- f- BLOCK ELEMENTS-EXERCISE (PART-II) (DESCRIPTIVE QUESTIONS)(VERY SHORT ANSWER QUESTIONS)
  1. What is the difference between the electronic configuration of lanthan...

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  2. Which is the most common oxidation state of lanthanoids?

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  3. Why does a transition series contains 10 elements?

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  4. Write the formula of a compound where transition metal is in +7 oxidat...

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  5. Which divalent metal ion has maximum paramagnetic character among the ...

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  6. Write the atomic number of the element in which the filling of 3d-subs...

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  7. In the transition series, with an increase in atomic number, the atomi...

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  8. Name a lanthanoid element which exhibits +4 oxidation state besides +3...

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  9. What is the effect of increasing pH on K2Cr2O7 solution?

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  10. Which is more basic La(OH)(3)zor Lu(OH)3 ? Why?

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  11. What is the basic difference between the electronic configurations of ...

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  12. Why do transition elements show similarities along the horizontal peri...

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  13. Why the third ionization energy of manganese (atomic number 25) unexpe...

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  14. Which property of the transition elements makes them good catalysts?

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  15. What are coinage metals ?

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  16. Write the ionic reaction for the reaction between MnO4^(-) ions and ox...

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  17. Write one reaction using alkaline KmnO4.

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  18. Write the electronic configuration of the element with atomic number 1...

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  19. What is the electronic cofiguration of charomium atom (z= 24) Give re...

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  20. Why are Cd^(2+) salts white ?

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