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Name the d-block elment which do not hav...

Name the d-block elment which do not have partially filled d-orbitals in their atom or in their simple ions

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Zn, Cd and Hg have (n-1) `d^(10)ns^(2)` electron configuration in their atoms and `(n-1)d^(10)ns^(0)` electron configuration in their most stable simple ions i.e., `M^(2+)`. So they do not have partially filled d-orbitals in their atoms or in their simple ions.
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The transition elements are those elements which have partially filled penultimate d-subshells in their elementary form or in their commonly occurring oxidation states.

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The colours of the transition metal are due to d-d excitation. The energy required for d-d electron axcitation is available in the visible range. Transition metal ions have the tendency to absorb certain rediations from the visible region and exhibit the complementary colour. The transition metal ions which have completely filled d-orbitals are colourless as the excitation of electron or electrons is not possible within d-orbitals. The transition metal ions which have completely empthy d-orbitals are also colourless. In KMnO_4 and K_2Cr_2O_7 , there are no unpaired electrons at the central atom but they are dep in colour. The colour of these compounds is due to charge transfer spectrum. for example in MnO_4 electron is momentrily transferred from O to the metal and thuys oxygen changes from O^(2-) and O^(ɵ) maganese from Mn^(7+) to Mn^(6+) . Q. Which of the following is paramagnetic as well as coloured ion?

The colours of the transition metal are due to d-d excitation. The energy required for d-d electron axcitation is available in the visible range. Transition metal ions have the tendency to absorb certain rediations from the visible region and exhibit the complementary colour. The transition metal ions which have completely filled d-orbitals are colourless as the excitation of electron or electrons is not possible within d-orbitals. The transition metal ions which have completely empthy d-orbitals are also colourless. In KMnO_4 and K_2Cr_2O_7 , there are no unpaired electrons at the central atom but they are dep in colour. The colour of these compounds is due to charge transfer spectrum. for example in MnO_4 electron is momentrily transferred from O to the metal and thuys oxygen changes from O^(2-) and O^(ɵ) maganese from Mn^(7+) to Mn^(6+) . Q. Which is a coloured ion?

The colours of the transition metal are due to d-d excitation. The energy required for d-d electron axcitation is available in the visible range. Transition metal ions have the tendency to absorb certain rediations from the visible region and exhibit the complementary colour. The transition metal ions which have completely filled d-orbitals are colourless as the excitation of electron or electrons is not possible within d-orbitals. The transition metal ions which have completely empthy d-orbitals are also colourless. In KMnO_4 and K_2Cr_2O_7 , there are no unpaired electrons at the central atom but they are dep in colour. The colour of these compounds is due to charge transfer spectrum. for example in MnO_4 electron is momentrily transferred from O to the metal and thuys oxygen changes from O^(2-) and O^(ɵ) maganese from Mn^(7+) to Mn^(6+) . Q. Select the correct statement:

The colours of the transition metal are due to d-d excitation. The energy required for d-d electron axcitation is available in the visible range. Transition metal ions have the tendency to absorb certain rediations from the visible region and exhibit the complementary colour. The transition metal ions which have completely filled d-orbitals are colourless as the excitation of electron or electrons is not possible within d-orbitals. The transition metal ions which have completely empthy d-orbitals are also colourless. In KMnO_4 and K_2Cr_2O_7 , there are no unpaired electrons at the central atom but they are dep in colour. The colour of these compounds is due to charge transfer spectrum. for example in MnO_4 electron is momentrily transferred from O to the metal and thuys oxygen changes from O^(2-) and O^(ɵ) maganese from Mn^(7+) to Mn^(6+) . Q. Which of the following compounds is (are) coloured due to charge transfer spectra and not due to d-d transition?

Though copper, silver and gold atoms have completely filled sets of d-orbitals, yet they are considered as transition metals. Why?

Which d-orbital does not have four lobes?

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RESONANCE ENGLISH-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 1
  1. General electronic configuration of transition metals is

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  2. Write the electronic configuration of given atoms/ ions. (i) Cr (ii...

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  3. Name the d-block elment which do not have partially filled d-orbitals ...

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  4. What is meant 'lanthanoid contraction'?

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  5. Name the (i) lightest and the (ii) heaviest element (in terms of densi...

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  6. Which element among d-block element has(i) the lowest melting point an...

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  7. Why Zinc has lowest melting point in 3d series?

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  8. Assign reasons for the following : (b) The ionization energy of 5d e...

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  9. Why do transition elements shows variable oxidation states?

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  10. What is the most common oxidation state of first transition series?

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  11. Name the three factors which determine the stability of a particular ...

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  12. E(Mn^(3+)//Mn^(2+))^@is highly positive than that of E(Cr^(3+)//Cr^(2+...

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  13. Use the data to answer the following and also justify giving rason: {:...

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  14. Which of the following ions would form (i) coloured and (ii) colourles...

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  15. Why Ti^(+4) complex are diamagnetic?

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  16. A substance is found to have a magnetic moments of 3.9BM.How many unpa...

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  17. Explain giving reasons: (i) Transition metals and many of their compou...

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  18. Describe The general characteristics of transition elements with speci...

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  19. Which type of reaction MnO(4)^(2-)show with acid , dilute -alkali or w...

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  20. Why is KMnO4 kept in dark bottles ?

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