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The pair of ions having same electronic configuration is ______.

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प्रश्न

The pair of ions having same electronic configuration is ______.

पर्याय

  • \[\ce{Cr^{3+}, Fe^{3+}}\]

  • \[\ce{Fe^{3+}, Mn^{2+}}\]

  • \[\ce{Fe^{3+}, Co^{3+}}\]

  • \[\ce{Sc^{3+}, Cr^{3+}}\]

MCQ
रिकाम्या जागा भरा
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उत्तर

The pair of ions having same electronic configuration is \[\ce{Fe^{3+}, Mn^{2+}}\].

Explanation:

\[\ce{Fe^{3+}}\] electronic configuration is 1s2 2s2 2p6 3s2 3p6 3d5 4s2

\[\ce{Mn^{2+}}\] electronic configuration is 1s2 2s2 2p6 3s2 3p6 3d5 4s2

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पाठ 2: Structure of Atom - Multiple Choice Questions (Type - I) [पृष्ठ १६]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 11
पाठ 2 Structure of Atom
Multiple Choice Questions (Type - I) | Q 14 | पृष्ठ १६

संबंधित प्रश्‍न

Using s, p, d notations, describe the orbital with the following quantum numbers n = 4; l =3.


Choose the correct option.

p-orbitals are _________ in shape.


Choose the correct option.

Principal Quantum number describes -


Define the term Electronic configuration.


State Hund’s rule of maximum multiplicity with a suitable example.


Write orbital notations for the electron in orbitals with the following quantum numbers.

n = 3, l = 2


Write condensed orbital notation of electronic configuration of the following element:

Silicon (Z = 14)


Draw shapes of 2s orbitals.


Using the concept of quantum numbers, calculate the maximum numbers of electrons present in the ‘M’ shell. Give their distribution in shells, subshells, and orbitals.


The three electrons have the following set of quantum numbers:

X = 6, 1, −1, `+1/2`

Y = 6, 0, 0, `+1/2`

Z = 5, 1, 0, `+1/2`

Identify the CORRECT statement.


Total number of orbitals associated with third shell will be ______.


In which of the following pairs, the ions are iso-electronic?

(i) \[\ce{Na^{+}, Mg^{2+}}\]

(ii) \[\ce{Al3^{+}, O-}\]

(iii) \[\ce{Na+ , O2-}\]

(iv) \[\ce{N3-, Cl-}\]


Which of the following orbitals are degenerate?

3dxy, 4dxy 3dz2, 3dyz, 4dyz, 4dz2  


Calculate the total number of angular nodes and radial nodes present in 3p orbital.


The arrangement of orbitals on the basis of energy is based upon their (n + l) value. Lower the value of (n + l), lower is the energy. For orbitals having same values of (n + l), the orbital with lower value of n will have lower energy.

Based upon the above information, arrange the following orbitals in the increasing order of energy.

5f, 6d, 7s, 7p


Match species given in Column I with the electronic configuration given in Column II.

Column I Column II
(i) \[\ce{Cr}\] (a) [Ar]3d84s0
(ii) \[\ce{Fe^{2+}}\] (b) [Ar]3d104s1
(iii) \[\ce{Ni^{2+}}\] (c) [Ar]3d64s0
(iv) \[\ce{Cu}\] (d) [Ar] 3d54s1
  (e) [Ar]3d64s2

In assigning R - S configuration, which among the following groups has highest priority?


In the case of R, S configuration the group having the highest priority is ______.


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