Home
Class 11
CHEMISTRY
Assign reasons for the following : (b)...

Assign reasons for the following :
(b) The ionization energy of 5d elements are greater than 3d elements.

Text Solution

Verified by Experts

In the 5d series, after lanthanum (Z=57) there is lanthanide contraction. As a result in each group the atomic size of 5d element is small and its nuclear charge is large. Hence, electrons from both can participate in bonding.
Promotional Banner

Topper's Solved these Questions

  • D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS

    RESONANCE ENGLISH|Exercise Exercise 2|40 Videos
  • D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS

    RESONANCE ENGLISH|Exercise Exercise 3|65 Videos
  • D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS

    RESONANCE ENGLISH|Exercise Match the column|1 Videos
  • CHEMICAL EQUILIBRIUM

    RESONANCE ENGLISH|Exercise Advanced Level Problems (Part-3)(Stage-5)|2 Videos
  • GASEOUS STATE

    RESONANCE ENGLISH|Exercise ORGANIC CHEMISTRY(Hydrocarbon)|18 Videos

Similar Questions

Explore conceptually related problems

Give reasons for the following: Ionization potential of the element increases across a period.

Assign reasons for the following : (i) The enthalpies of atomisation of transition elements are high. (ii) The transition metals and many of their compounds act as good catalyst. (iii) From element to element the actinoid contraction is greater than the lanthanoid contraction. (iv) The E^(@) value for the Mn^(3+)//Mn^(2+) couple is much more positive than that for Cr^(3+)//Cr^(2+) . (v) Scandium (Z = 21) does not exhibit variable oxidation states and yet it is regarded as transition element.

Assign reason for each of the following : Transition elements exhibit paramagnetic behaviour .

D and f block elements

Which of the following element will have highest ionization energy?

In the following, the element with the highest ionization energy is

In the following, the element with the highest ionization energy is

In the following, the element with the highest ionization energy is

Assign reasons for each of the following : (i) Transiti9n metals generally form coloured compounds. (ii) Manganese exhibits the highest oxidation state of+ 7 among the 3d series of transition elements.

D and F block elements

RESONANCE ENGLISH-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 1
  1. Which element among d-block element has(i) the lowest melting point an...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  4. Why do transition elements shows variable oxidation states?

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  15. Why is KMnO4 kept in dark bottles ?

    Text Solution

    |

  16. Why does AgNO(3) produced a black stain on the skin?

    Text Solution

    |

  17. Why is AgBr used in photography ?

    Text Solution

    |

  18. Why it is not advisable to dissolve KMnO(4) in cold and concentrated H...

    Text Solution

    |

  19. What happen when: (a) Green Vitriol is strongly heated. , (b) FeSO(4)...

    Text Solution

    |

  20. State true or false: Reaction of K(2)Cr(2)O(7) with cold and concentra...

    Text Solution

    |