Home
Class 11
CHEMISTRY
Many transition elements also form 3+ io...

Many transition elements also form `3+` ions by losing one `(n-1)d` electron in addition to the two ns electrons except

A

`Sc`

B

`Cr`

C

`Fe`

D

`Ni`

Text Solution

Verified by Experts

The correct Answer is:
D
`Ni` is predominantly divalent and ionic.
`Sc(3d^14s^2)rarrSc^(3+)([Ar])`
`Cr(3d^54s^1)rarrCr^(3+)(3d^3)`
`Fe(3d^64s^2)rarrFe^(3+)(3d^5)`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL BONDING

    R SHARMA|Exercise Follow-up Test 3|8 Videos

  • CHEMICAL BONDING

    R SHARMA|Exercise Follow-up Test 4|15 Videos

  • CHEMICAL BONDING

    R SHARMA|Exercise Follow-up Test 1|5 Videos

  • AROMATIC HYDROCARBONS

    R SHARMA|Exercise Archives|59 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN ELEMENTS

    R SHARMA|Exercise ARCHIVES|37 Videos

Similar Questions

Explore conceptually related problems

The sum of ns and (n-1)d electrons in Tc are

" The sum of "ns" and "(n-1)d" electrons in Tc are : "

In forming ions, the atoms of transition metals generally lose the ns electrons first, then they may lose one or more (n-i)d electrons. The 2+ ions are common for the transition elements and are obtained by the loss of the highest energy electrons from the atom except

Assertion : Ionisation of transition metals involves loss of ns electron before (n - 1)d electrons. Reason : Filling of ns-orbitals takes placed before (n - 1)d orbitals.

Many ionic compounds in transition metal ions are colored because of the electronic transitions (in the visible range) involving d electrons, whereas the ionic compounds of the representative elements are usually colorless. Which of the following compounds is green in color?

Which one of the transition metal ions have no unpaired electron

R SHARMA-CHEMICAL BONDING-Follow-up Test 2
  1. Most of the monatomic ions of the representative elements are obtained...

    Text Solution

    |

  2. Group 13 elements show less tendency to form ionic compounds than do g...

    Text Solution

    |

  3. No compounds of representative elements are found with ions having cha...

    Text Solution

    |

  4. There is a tendency for the elements of groups 13 to 15 of higher peri...

    Text Solution

    |

  5. The elements fo groups 16 and 17 whose atoms have the largest negative...

    Text Solution

    |

  6. Although the electron gain enthalpy of N(2s^2 2p63) is positive, the N...

    Text Solution

    |

  7. Which of the following cations posses neither noble gas nor pseudo nob...

    Text Solution

    |

  8. Many ions, particulary anions, are polyatomic. The atoms in these ions...

    Text Solution

    |

  9. Cations are usually made from metals and anions are usually made from ...

    Text Solution

    |

  10. Most transition metals from several cations having configurations.

    Text Solution

    |

  11. In forming ions, the atoms of transition metals generally lose the ns ...

    Text Solution

    |

  12. Many transition elements also form 3+ ions by losing one (n-1)d electr...

    Text Solution

    |

  13. In case of transition metals, certain atoms can lose different numbers...

    Text Solution

    |

  14. Many ionic compounds in transition metal ions are colored because of t...

    Text Solution

    |

  15. Aqueous solutions of transition metal cations are also colored. Which ...

    Text Solution

    |

  16. Which of the following catios forms colorless solution?

    Text Solution

    |

  17. Which of the following transition metal catios have noble gas core? ...

    Text Solution

    |

  18. For the formation of ionic bond between two atoms, the electronegativi...

    Text Solution

    |

  19. Although for Mg, DeltaiH(378 kJ mol^(-1)) is greater than DeltaiH2 (14...

    Text Solution

    |

  20. Although Na^(2+) has a higher charge and, therefore, NaCl2 should have...

    Text Solution

    |