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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता ११ वी

Choose the correct option. Principal Quantum number describes -

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प्रश्न

Choose the correct option.

Principal Quantum number describes -

पर्याय

  • shape of orbital

  • size of the orbital

  • spin of electron

  • orientation of in the orbital electron cloud

MCQ
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उत्तर

Principal Quantum number describes - size of the orbital

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पाठ 4: Structure of Atom - Exercises [पृष्ठ ५३]

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बालभारती Chemistry [English] Standard 11 Maharashtra State Board
पाठ 4 Structure of Atom
Exercises | Q 1. (E) | पृष्ठ ५३

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 = 3; l =1.


Using s, p, d notations, describe the orbital with the following quantum numbers n = 4; l = 2.


Choose the correct option.

p-orbitals are _________ in shape.


State the order of filling atomic orbitals following Aufbau principle.


Explain the anomalous behaviour of chromium.


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:

Carbon (Z = 6)


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

Calcium (Z = 20)


Draw shapes of 2p orbitals.


If n = 3, what are the quantum number l and m?


Which one of the following is NOT possible?


Orbital angular momentum depends on ______.


Which of the following sets of quantum numbers are correct?

  `n` `l` `m_l`
(i) 1 1 +2
(ii) 2 1 +1
(iii) 3 2 –2
(iv) 3 4 –2

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


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.

4s, 3s, 3p, 4d


What is the difference between the terms orbit and orbital?


Match the quantum numbers with the information provided by these.

Quantum number Information provided
(i) Principal quantum number (a) orientation of the orbital
(ii) Azimuthal quantum number (b) energy and size of orbital
(iii) Magnetic quantum number (c) spin of electron
(iv) Spin quantum number (d) shape of the orbital

Match the following

(i) Photon (a) Value is 4 for N shell
(ii) Electron (b) Probability density
(iii) ψ2 (c) Always positive value
(iv) Principal quantum number n (d) Exhibits both momentum and wavelength

Choose the INCORRECT statement


Which of the following is not the permissible arrangement of electrons in an atom?


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


Which one of the following laws will represent the pairing of electrons in a subshell after each orbital is filled with one electron?


What are the possible values of magnetic quantum number for p orbital?


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