मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान इयत्ता ११

The number of radial nodes for 3p orbital is ______.

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प्रश्न

The number of radial nodes for 3p orbital is ______.

पर्याय

  • 3

  • 4

  • 2

  • 1

MCQ
रिकाम्या जागा भरा
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उत्तर

The number of radial nodes for 3p orbital is 1.

Explanation:

Number of radial nodes = n – 1 – 1

For 3p orbital, n = 3 – 1 – 1 = 1

Number of radial nodes = 3 – 1 – 1 = 1

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पाठ 2: Structure of Atom - Multiple Choice Questions (Type - I) [पृष्ठ १५]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 11
पाठ 2 Structure of Atom
Multiple Choice Questions (Type - I) | Q 8 | पृष्ठ १५

संबंधित प्रश्‍न

Give the names of quantum numbers.


Define the term Electronic configuration.


State and explain Pauli’s exclusion principle.


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

Oxygen (Z = 8)


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

Calcium (Z = 20)


Explain in brief, the significance of the azimuthal quantum number.


Indicate the number of unpaired electrons in \[\ce{Si}\] (Z = 14).


Which one of the following orders is CORRECT in case of energy of the given subshells?

P: n = 4; l = 3

Q: n = 5; I = 1

R: n = 5; l = 0

S: n = 4; l = 2


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.


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?


The probability density plots of 1s and 2s orbitals are given in Figure:


The density of dots in a region represents the probability density of finding electrons in the region.

On the basis of above diagram which of the following statements is incorrect?


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`

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


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


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


Match the following species with their corresponding ground state electronic configuration.

Atom / Ion Electronic configuration
(i) \[\ce{Cu}\] (a) 1s2 2s2 2p6 3s2 3p6 3d10
(ii) \[\ce{Cu^{2+}}\] (b) 1s2 2s2 2p6 3s2 3p6 3d10 4s2
(iii) \[\ce{Zn^{2+}}\] (c) 1s2 2s2 2p6 3s2 3p6 3d10 4s1
(iv) \[\ce{Cr^{3+}}\] (d) 1s2 2s2 2p6 3s2 3p6 3d9
  (e) 1s2 2s2 2p6 3s2 3p6 3d3

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