Chapter 2 – Atomic Structure
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What is the maximum number of electrons that may be present in all the atomic orbitals with principle quantum no. 3 and azimuthal quantum no. 2?
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Nov
What is the maximum number of electrons that may be present in all the atomic orbitals with principle quantum no. 3 and azimuthal quantum no. 2? What is the maximum number of electrons that may be present in all the atomic orbitals with principle quantum no. 3 and azimuthal quantum no. 2? November 16, 2020 [...]
According to Bohr theory, the electronic energy of the hydrogen atom in the nth Bohr orbit is given by En = −n^2 / -21.7 × 10^−19 J Calculate the longest wavelength of electron from the 3rd Bohr’s orbit of the He^+ ion.
16
Nov
According to Bohr theory, the electronic energy of the hydrogen atom in the nth Bohr orbit is given by En = −n^2 / -21.7 × 10^−19 J Calculate the longest wavelength of electron from the 3rd Bohr’s orbit of the He^+ ion. According to Bohr theory the electronic energy of the hydrogen atom in [...]
Estimate the difference in energy between the first and second Bohr orbit for hydrogen atom. At what minimum atomic number would a transition from n=2 to n=1 energy level result in the emission of X-rays with l = 3.0×10^ −8 m? Which hydrogen-like species does this atomic number correspond to?
16
Nov
Estimate the difference in energy between the first and second Bohr orbit for hydrogen atom. At what minimum atomic number would a transition from n=2 to n=1 energy level result in the emission of X-rays with l = 3.0×10^ −8 m? Which hydrogen-like species does this atomic number correspond to? calculate the kinetic energy of [...]
What transition in the hydrogen spectrum would have the same wavelength as the Balmer transition, n=4 to n=2 of He^+ spectrum?
16
Nov
What transition in the hydrogen spectrum would have the same wavelength as the Balmer transition, n=4 to n=2 of He^+ spectrum? n=4 to n=2 of He + spectrum? What transition in the hydrogen spectrum would have the same wavelength as the Balmer transition November 16, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 [...]
Iodine molecule dissociates into atoms after absorbing light of wavelength 4500 A˚ . If one quantum of light is absorbed by each molecule, calculate the kinetic energy of the iodine atoms. [Given B.E. of I2 = 240 kJ/mol ^-1)
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Nov
Iodine molecule dissociates into atoms after absorbing light of wavelength 4500 A˚ . If one quantum of light is absorbed by each molecule, calculate the kinetic energy of the iodine atoms. [Given B.E. of I2 = 240 kJ/mol ^-1) calculate the kinetic energy of the iodine atoms. [Given B.E. of I2 = 240 kJ/mol ^-1) [...]
Calculate the wave number for the shortest wavelength transition in Balmer series of atomic hydrogen.
16
Nov
Calculate the wave number for the shortest wavelength transition in Balmer series of atomic hydrogen. Calculate the wave number for the shortest wavelength transition in Balmer series of atomic hydrogen. November 16, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 2 - Atomic Structure , Chemistry [...]
Consider the hydrogen atom to be a proton embedded in a cavity of radius a0 (Bohr radius) whose charge is neutralized by the addition of an electron to the cavity in vacuum infinitely slowly. Estimate the average total energy of an electron in its ground state in a hydrogen atom as the work done in the above neutralization process. Also, if the magnitude of average KE is half the magnitude of average potential energy, find the average potential energy.
16
Nov
Consider the hydrogen atom to be a proton embedded in a cavity of radius a0 (Bohr radius) whose charge is neutralized by the addition of an electron to the cavity in vacuum infinitely slowly. Estimate the average total energy of an electron in its ground state in a hydrogen atom as the work done in [...]
An electron beam can undergo diffraction by crystals. Through what potential should a beam of electrons be accelerated so that its wavelength becomes equal to 1.54 A˚ ?
16
Nov
An electron beam can undergo diffraction by crystals. Through what potential should a beam of electrons be accelerated so that its wavelength becomes equal to 1.54 A˚ ? An electron beam can undergo diffraction by crystals. Through what potential should a beam of electrons be accelerated so that its wavelength becomes equal to 1.54 A˚ [...]
Calculate the energy required to excite one litre of hydrogen gas at 1 atm pressure and 298 K to the first excited state of atomic hydrogen. The energy for the dissociation of H-H bond is 436 kJ mol^−1 .
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Nov
Calculate the energy required to excite one litre of hydrogen gas at 1 atm pressure and 298 K to the first excited state of atomic hydrogen. The energy for the dissociation of H-H bond is 436 kJ mol^−1 . The work function (ϕ) of some metals are listed below. The number of metals which will [...]
The wavelength corresponding to maximum energy for hydrogen is 91.2nm. Find the corresponding wavelength for He^+ ion.
16
Nov
The wavelength corresponding to maximum energy for hydrogen is 91.2nm. Find the corresponding wavelength for He^+ ion. The wavelength corresponding to maximum energy for hydrogen is 91.2nm. Find the corresponding wavelength for He^+ ion. November 16, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 2 - [...]