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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता ११ वी

Draw shapes of 2p orbitals.

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प्रश्न

Draw shapes of 2p orbitals.

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उत्तर


          Shapes of 2p orbitals

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पाठ 4: Structure of Atom - Exercises [पृष्ठ ५४]

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बालभारती Chemistry [English] Standard 11 Maharashtra State Board
पाठ 4 Structure of Atom
Exercises | Q 6. (M) | पृष्ठ ५४

संबंधित प्रश्‍न

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


Choose the correct option.

“No two electrons in the same atoms can have identical set of four quantum numbers”. This statement is known as -


State Heisenberg uncertainty principle.


State and explain Pauli’s exclusion principle.


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 = 2, l = 1


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

Lithium (Z = 3)


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

Silicon (Z = 14)


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

Chlorine (Z = 17)


Draw shapes of 2s orbitals.


Write a note on ‘Principal Quantum number.


The designation of a subshell with n = 6 and l = 2 is ____________.


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


Number of angular nodes for 4d orbital is ______.


The pair of ions having same electronic configuration is ______.


Out of the following pairs of electrons, identify the pairs of electrons present in degenerate orbitals:

(i)  (a) `n = 3, l = 2, m_l = -2, m_s = - 1/2`
  (b) `n = 3, l = 2, m_l = -1, m_s = - 1/2`
   
(ii)  (a) `n = 3, l = 1, m_l = 1, m_s = + 1/2`
  (b) `n = 3, l = 2, m_l = 1, m_s = + 1/2`
   
(iii) (a) `n = 4, l = 1, m_l = 1, m_s = + 1/2`
  (b) `n = 3, l = 2, m_l = 1, m_s = + 1/2`
   
(iv)  (a) `n = 3, l = 2, m_l = +2, m_s = - 1/2`
  (b) `n = 3, l = 2, m_l = +2, m_s = + 1/2`

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


Which of the following statements concerning the quantum numbers are correct?

(i) Angular quantum number determines the three dimensional shape of the orbital.

(ii) The principal quantum number determines the orientation and energy of the orbital.

(iii) Magnetic quantum number determines the size of the orbital.

(iv) Spin quantum number of an electron determines the orientation of the spin of electron relative to the chosen axis.


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


The electronic configuration of valence shell of Cu is 3d104s1 and not 3d94s2. How is this configuration explained?


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

Which of the following is the correct plot for the probability density ψ2 (r) as a function of distance 'r' of the electron from the nucleus for 2s orbitals?


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