Chapter 2 – Atomic Structure (Level 1 and Level 2)
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Which of the following expressions represents the spectrum of Balmer series (If n is the principal quantum number of higher energy level) in Hydrogen atom ?
10
Nov
Which of the following expressions represents the spectrum of Balmer series (If n is the principal quantum number of higher energy level) in Hydrogen atom ? Which of the following expressions represents the spectrum of Balmer series (If n is the principal quantum number of higher energy level) in Hydrogen atom ? November 10, 2020 [...]
Electron transition in He^+ ion takes from n2 to n1 shell such that: 2n 2 +3n 1 =18 2n 2 −3n 1 =6 What will be the total number of photons emitted when electrons transit to n1 shell?
10
Nov
Electron transition in He^+ ion takes from n2 to n1 shell such that: 2n 2 +3n 1 =18 2n 2 −3n 1 =6 What will be the total number of photons emitted when electrons transit to n1 shell? Electron transition in He^+ ion takes from n2 to n1 shell such that: [...]
Assume that 2×10^−17 J of light energy is needed by the interior of the human eye to see an object. How many photons of yellow light with λ=595.2nm are needed to generate this generate this minimum energy ?
10
Nov
Assume that 2×10^−17 J of light energy is needed by the interior of the human eye to see an object. How many photons of yellow light with λ=595.2nm are needed to generate this generate this minimum energy ? What is ratio of time periods (T1 /T 2 ) in second orbit of hydrogen atom to [...]
Wavelength for high energy EMR transition in H-atom is 91 nm. What energy is needed for this transition?
10
Nov
Wavelength for high energy EMR transition in H-atom is 91 nm. What energy is needed for this transition? Wavelength for high energy EMR transition in H-atom is 91 nm. What energy is needed for this transition? November 10, 2020 Category: Chapter 2 - Atomic Structure (Level 1 and Level 2) , N Awasthi Physical Chemistry [...]
What is the energy content per photon (J) for light of frequency 4.2×10^14 Hz?
10
Nov
What is the energy content per photon (J) for light of frequency 4.2×10^14 Hz? What is the energy content per photon (J) for light of frequency 4.2×10^14 Hz? November 10, 2020 Category: Chapter 2 - Atomic Structure (Level 1 and Level 2) , N Awasthi Physical Chemistry ,
The ionization potential for the electron in the ground state of hydrogen atom is 13.6 eV atom^-1.What would be the ionization potential for the electron in the first excited state of Li2+ ?
10
Nov
The ionization potential for the electron in the ground state of hydrogen atom is 13.6 eV atom^-1.What would be the ionization potential for the electron in the first excited state of Li2+ ? The ionization potential for the electron in the ground state of hydrogen atom is 13.6 eV atom^-1.What would be the ionization potential [...]
If ε0 be the permittivity of vacuum and r be the radius of orbit of H- atom in which electron is revolving, then velocity of electron is given by :
10
Nov
If ε0 be the permittivity of vacuum and r be the radius of orbit of H- atom in which electron is revolving, then velocity of electron is given by : If ε0 be the permittivity of vacuum and r be the radius of orbit of H- atom in which electron is revolving then velocity of [...]
The energy of the second Bohr orbit of hydrogen atom is – 3.41 eV. The energy of the second orbit of He^+ ion would be:
10
Nov
The energy of the second Bohr orbit of hydrogen atom is – 3.41 eV. The energy of the second orbit of He^+ ion would be: The energy of the second Bohr orbit of hydrogen atom is - 3.41 eV. The energy of the second orbit of He^+ ion would be: November 10, 2020 Category: Chapter [...]
The mass of an electron is m, charge is e and it is accelerated from rest through a potential difference of V volts. The velocity acquired by electron will be
10
Nov
The mass of an electron is m, charge is e and it is accelerated from rest through a potential difference of V volts. The velocity acquired by electron will be charge is e and it is accelerated from rest through a potential difference of V volts. The velocity acquired by electron will be The mass [...]
What is ratio of time periods (T1 /T 2 ) in second orbit of hydrogen atom to third orbit of He+ ion?
10
Nov
What is ratio of time periods (T1 /T 2 ) in second orbit of hydrogen atom to third orbit of He+ ion? What is ratio of time periods (T1 /T 2 ) in second orbit of hydrogen atom to third orbit of He+ ion? November 10, 2020 Category: Chapter 2 - Atomic Structure (Level 1 [...]