Home
Class 12
CHEMISTRY
Scandium forms no coloured ions, yet it ...

Scandium forms no coloured ions, yet it is regarded as a transition elements. Explain why?

Text Solution

Verified by Experts

Scandium in the ground state has one electron int eh 3d-subshell . Hence,it is regarded as a transitio elements. However, in its common oxidation state `+3`, it has no electron in 3d susshell `( 3d^(0))` .Hence, it does not form coloured ion.
Promotional Banner

Topper's Solved these Questions

  • D- AND F-BLOCK ELEMENTS

    PRADEEP|Exercise NCERT (QUESTIONS AND EXERCISES WITH ANSERS)|10 Videos

  • D- AND F-BLOCK ELEMENTS

    PRADEEP|Exercise NCERT INTEXT UNSOLVED QUESTIONS|10 Videos

  • D- AND F-BLOCK ELEMENTS

    PRADEEP|Exercise TEST YOUR GRIP( FILL IN THE BLANKS)|33 Videos

  • CORDINATION COMPOUNDS

    PRADEEP|Exercise Important Questions|28 Videos

  • ELECTROCHEMISTRY

    PRADEEP|Exercise IMPORTANT QUESTIONS FOR BOARD EXAMINATION|25 Videos

Similar Questions

Explore conceptually related problems

Explain the following: (a) Europium (II) is more stable than cerium (II) (b) Zr and Hf exhibit similar properties. ( c) Scandium forms no coloured ions, yet it is regarded as a transition metal.

Explain why zinc is not rgardede as a transition element.

The element scandium (Z=21) does not exhibit variable oxidation state and yet it is regarded as a transition element. Explain.

Which of the following is not regarded as a transition element ?

Give reasons for the following: (a) Transition metals and many of their compounds act as catalysts. (b) Scandium (Z = 21) does not exhibit variable oxidation state and yet it is regarded as a transition element. (c) Write the step involved in the preparation of Na_2CrO_4 from chromite ore.

PRADEEP-D- AND F-BLOCK ELEMENTS-CONCEPTUAL QUESTIONS
  1. Why generally there is an increase in density of elements from titani...

    Text Solution

    |

  2. Giving reasons indicate which one of the following would be coloured ?...

    Text Solution

    |

  3. Scandium forms no coloured ions, yet it is regarded as a transition el...

    Text Solution

    |

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

    Text Solution

    |

  5. The paramagnetic character in 3d transition series elements increases ...

    Text Solution

    |

  6. Decide giving reason which one of the following pairs exhibits the pr...

    Text Solution

    |

  7. (a) of the ions Ag^(+),Co^(2+) and Ti^(+), which one will be coloured ...

    Text Solution

    |

  8. Why are the ionisation energies of 5d elements greater than 3d element...

    Text Solution

    |

  9. Describe giving reason which one of the following pairs has the proper...

    Text Solution

    |

  10. Give reason for the following features of transition metal chemistry: ...

    Text Solution

    |

  11. The 4d and 5d series of transition metals have more frequency metal-me...

    Text Solution

    |

  12. Give reasons for each of the following: (i) Size of trivalent lantha...

    Text Solution

    |

  13. Assign reason for each of the following statement: (i) The largest n...

    Text Solution

    |

  14. (i) Which is a stronger reducing agent Cr^(2+) or Fe^(2+) and why ? ...

    Text Solution

    |

  15. Assign reasons for each of the following : (i) Manganese exhibits th...

    Text Solution

    |

  16. Explain why Zn shown only +2 oxidation state.

    Text Solution

    |

  17. Why is first ionization enthalpy of Cu higher than that of Na ?

    Text Solution

    |

  18. Give reason for the following : (i) Mn shows the highest oxidation s...

    Text Solution

    |

  19. (a) Following are the transition metal ions of 3d series: Ti^(4+),V^...

    Text Solution

    |

  20. Write the formula of different oxides of manganese. What is the oxidat...

    Text Solution

    |