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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 - Chemistry

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प्रश्न

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, solve the questions given below:

Which of the following orbitals has the lowest energy?

4d, 4f, 5s, 5p

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उत्तर

Orbitals n n + l
4d 4 6
4f 4 7
5s 5 5
5p 5 6

The lowest energy orbital is 5s

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पाठ 2: Structure of Atom - Multiple Choice Questions (Type - I) [पृष्ठ १९]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 11
पाठ 2 Structure of Atom
Multiple Choice Questions (Type - I) | Q 27.(ii).(a) | पृष्ठ १९

संबंधित प्रश्‍न

Using s, p, d notations, describe the orbital with the following quantum numbers n = 1, l = 0.


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


Define the term Electronic configuration.


State the order of filling atomic orbitals following Aufbau principle.


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

n = 4, l = 2


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)


The principal quantum number (n) and magnetic quantum number (ml) for the valence electrons of rubidium atom (Z = 37) are ____________ respectively.


Which mineral among the following contains vanadium in it?


How many electrons in 19K have n = 3, l = 1?


How many electrons can fit in the orbital for which n = 4 and l = 2?


Which of the following has a greater number of electrons than neutrons?

(Mass number of Mg, C, O and Na is 24, 12, 16 and 23 respectively).


Which one of the following is NOT possible?


Which of the following options does not represent ground state electronic configuration of an atom?


Nickel atom can lose two electrons to form \[\ce{Ni^{2+}}\] ion. The atomic number of nickel is 28. From which orbital will nickel lose two electrons.


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, solve the questions given below:

Which of the following orbitals has the lowest energy?

5p, 5d, 5f, 6s, 6p


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

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