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The group number, number of valence electrons, and valency of an element with atomic number respectively, are:
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Important Questions on Structure of Atom
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The electrons are more likely to be found:
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At temperature , the average kinetic energy of any particle is . The de Broglie wavelength follows the order:
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The ground state energy of a hydrogen atom is . The energy of second excited state of ion in is:
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Which of the graphs shown below does not represent the relationship between incident light and the electron ejected from metal surface?
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The ratio of the shortest wavelength of two spectral series of hydrogen spectrum is found to be about . The spectral series are:
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The graph between and (radical distance) is shown below. This represents:
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The isoelectronic set of ions is:
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Aqueous solution of which of the following salts will not contain ions with the electronic configuration ?
