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- Calculate the number of electrons which will together weigh one gram?
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- Calculate the total number of electrons present in one mole of methane
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- How many néutrons and protons are there in the following nuclei 6 ^(3)...
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- Write the complete symbol for the atom with the given atomic number (...
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- Yellow light emitted from a sodium lamp has a wavelength '(lambda)' of...
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- Find energy of each of the photons which i. corresponds to light of f...
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- Calculate the wavelength, frequency and wave riumber of a light wave w...
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- What is the number of photons of light with a wavelength of 4000 pm th...
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- A photon of wavelength '4 xx 10^(-7) m' strikes on metal surface, the ...
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- Electromagnetic radiation of wavelength 242 nm is just sufficient to i...
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- A 25 watt bulb emits monochromatic yellow light of wavelength of '0.57...
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- Electrons are emitted with zero velocity from a metal surface when it ...
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- What is the wavelength of light emitted when the electron in a hydroge...
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- How much energy is réquired to ionise a 'H' atom if the electron occup...
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- What is the maximum number of emission lines when the excited electron...
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- i. The energy associated with the first-orbit in the hydrogen atom is ...
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- Calculate the wave number for the longest wave length transition in th...
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- What is the energy in joules required to shift the electron of the hyd...
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- Calculate the energy required to remove an electron completely from n ...
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- Calculate the wavelength of an electron moving with a velocity of 2.05...
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