हिंदी

Choose the correct option. Principal Quantum number describes - - Chemistry

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प्रश्न

Choose the correct option.

Principal Quantum number describes -

विकल्प

  • 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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अध्याय 4: Structure of Atom - Exercises [पृष्ठ ५३]

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बालभारती Chemistry [English] Standard 11 Maharashtra State Board
अध्याय 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 = 3; l =1.


Choose the correct option.

p-orbitals are _________ in shape.


State Heisenberg uncertainty principle.


Give the names of quantum numbers.


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

n = 2, l = 1


Write electronic configurations of \[\ce{Fe, Fe2+, Fe3+}\].


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:

Calcium (Z = 20)


Draw shapes of 2s orbitals.


Draw shapes of 2p orbitals.


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


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.


Which mineral among the following contains vanadium in it?


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


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


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?


Number of angular nodes for 4d orbital is ______.


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


The pair of ions having same electronic configuration is ______.


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

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


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


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


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