Chapter 2 – Atomic Structure (Level 1 and Level 2)
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If the energy of H-atom in the ground state is −E, the velocity of photo-electron emitted when a photon having energy Ep strikes a stationary Li^2+ ion in ground state, is given by:
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Nov
If the energy of H-atom in the ground state is −E, the velocity of photo-electron emitted when a photon having energy Ep strikes a stationary Li^2+ ion in ground state, is given by: If the energy of H-atom in the ground state is −E is given by the velocity of photo-electron emitted when a photon [...]
An element undergoes a reaction as shown: X+2e− →X 2− , energy released =30.87 eV/atom. If the energy released, is used to dissociate 4 g of H 2 molecules, equally into H+ and H^* , where H^∗ is excited state of H atoms where the electron travels in orbit whose circumference equal to four times its de Broglie’s wavelength. Determine the least moles of X that would be required. Given: I.E. of H=13.6 eV/atom, bond energy of H2 = 4.526 eV/ molecule.
10
Nov
An element undergoes a reaction as shown: X+2e− →X 2− , energy released =30.87 eV/atom. If the energy released, is used to dissociate 4 g of H 2 molecules, equally into H+ and H^* , where H^∗ is excited state of H atoms where the electron travels in orbit whose circumference equal to four times [...]
An electron is allowed to move freely in a closed cubic box of length of side 10 cm. The uncertainty in its velocity will be :
10
Nov
An electron is allowed to move freely in a closed cubic box of length of side 10 cm. The uncertainty in its velocity will be : An electron is allowed to move freely in a closed cubic box of length of side 10 cm. The uncertainty in its velocity will be : November 10, 2020 [...]
In a collection of H-atoms, all the electrons jump from n=5 to ground level finally ( directly of indirectly) ,without emitting any line in Blamer series. The number of possible different radiations is :
10
Nov
In a collection of H-atoms, all the electrons jump from n=5 to ground level finally ( directly of indirectly) ,without emitting any line in Blamer series. The number of possible different radiations is : all the electrons jump from n=5 to ground level finally ( directly of indirectly) In a collection of H-atoms without emitting [...]
When an electron makes a transition from (n+1) state to n th state, the frequency of emitted radiations is related to n according to (n>>1):
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Nov
When an electron makes a transition from (n+1) state to n th state, the frequency of emitted radiations is related to n according to (n>>1): the frequency of emitted radiations is related to n according to (n>>1): When an electron makes a transition from (n+1) state to n th state November 10, 2020 Category: Chapter [...]
If radiation corresponding to second line of “Balmer series” of Li^2+ ion, knocked out electron from first excited state of H-atom, then kinetic energy of ejected electron would be:
10
Nov
If radiation corresponding to second line of “Balmer series” of Li^2+ ion, knocked out electron from first excited state of H-atom, then kinetic energy of ejected electron would be: If radiation corresponding to second line of "Balmer series" of Li^2+ ion knocked out electron from first excited state of H-atom then kinetic energy of ejected [...]
The angular momentum of an electron in a Bohr’s orbit of He+ is 3.1652 × 10^−34 kg−m^2/sec. What is the wave number in terms of Rydberg constant (R) of the spectral line emitted when an electron falls this level to the first excited state. [Use h = 6.626×10^−34Js].
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Nov
The angular momentum of an electron in a Bohr’s orbit of He+ is 3.1652 × 10^−34 kg−m^2/sec. What is the wave number in terms of Rydberg constant (R) of the spectral line emitted when an electron falls this level to the first excited state. [Use h = 6.626×10^−34Js]. The ratio of the radius difference between [...]
The velocity of an e in excited state of H-atom is 1.093×10^6m/s, what is the circumference of this orbit?
10
Nov
The velocity of an e in excited state of H-atom is 1.093×10^6m/s, what is the circumference of this orbit? The velocity of an e in excited state of H-atom is 1.093×10^6m/s what is the circumference of this orbit? November 10, 2020 Category: Chapter 2 - Atomic Structure (Level 1 and Level 2) , N Awasthi [...]
The ratio of the radius difference between 4th and 3rd orbit of H-atom and that of Li^2+ ion is:
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Nov
The ratio of the radius difference between 4th and 3rd orbit of H-atom and that of Li^2+ ion is: The ratio of the radius difference between 4th and 3rd orbit of H-atom and that of Li^2+ ion is: November 10, 2020 Category: Chapter 2 - Atomic Structure (Level 1 and Level 2) , N Awasthi [...]
What is the angular velocity (ω) of an electron occupying second orbit of Li^2+ ion?
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Nov
What is the angular velocity (ω) of an electron occupying second orbit of Li^2+ ion? What is the angular velocity (ω) of an electron occupying second orbit of Li^2+ ion? November 10, 2020 Category: Chapter 2 - Atomic Structure (Level 1 and Level 2) , N Awasthi Physical Chemistry ,