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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता ११ वी

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

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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 = 3; l =1.


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


Choose the correct option.

p-orbitals are _________ in shape.


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 and explain Pauli’s exclusion principle.


State Hund’s rule of maximum multiplicity with a suitable example.


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:

Lithium (Z = 3)


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

Chlorine (Z = 17)


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

Calcium (Z = 20)


Draw shapes of 2s orbitals.


Write a note on ‘Principal Quantum number.


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.


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?


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


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 one of the following is NOT possible?


Which of the following properties of atom could be explained correctly by Thomson Model of atom?


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


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

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.


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.


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

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


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