Which hydrogen-like species will have same radius as that of Bohr orbit of hydrogen atom?
Which of the following element has least number of electrons in its M-shell? |
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Which of the following has the maximum number of unpaired ‘d’ electrons? |
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Time period of a wave is 5 × 10–3 s, what is the frequency? |
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The wavelength (in Å) of an emission line obtained for Li2+ during electronic transition from n2 = 2 to n1 = 1 is (R = Rydberg constant) |
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Uncertainty in position of a particle of 25 g in space is 10–5m. Hence, uncertainty in velocity (ms–1) is (Planck's constant h = 6.6 × 10–34 Js) |
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The wavelength of the radiation emitted, when in a hydrogen atom electron falls from infinity to stationary state 1, would be (Rydberg constant = 1.097 × 107 m–1) |
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How does the Binding Energy per nucleon vary with the increase in the number of nucleons? |
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An electronic transition in hydrogen atom results in the formation of Hα line of hydrogen in Lyman series, the energies associated with the electron in each of the orbits involved in the transition (in kcal mol–1) are |
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In Bohr series of lines of hydrogen spectrum, the third line from the red end corresponds to which one of the following inner-orbit jumps of the electron for Bohr orbits in an atom of hydrogen? |
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In the ground state, an element has 13 electrons in its M-shell. The element is_____. |
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