Q. Number of electrons in outer most shell of alkali metals are

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Q. Third orbit of hydrogen atom is far from first orbit at about

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Q. Work was done on wave theories by

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Q. Neutron have not property of

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Q. For derivation of radius charge on nucleus is assumed to be

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Q. Element which has 1s22s22p2x2p2y2p2 electronic configuration is

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Q. Positive rays in discharge tube produced glow on wall opposite to

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Q. X Rays produced in experiment are emitted in

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Q. Total number of electrons in s-sub shell are

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Q. Value of radius 2.11 angstrom is for

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Q. For L shell value of n is

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Q. Value of factor used for calculating energy of electrons is negative and it is

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Q. Cathode rays are not simply rays but they are actually

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Q. Spectral lines of hydrogen atom which comes in IR region forms

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Q. Atomic spectrum is also produced by heating of elements in

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Q. After Bohr atomic model series of spectral line of hydrogen atom discovered was

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Q. Quantum theory was proposed in

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Q. Spectral lines for X-rays are divided into major groups which are

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Q. Quantum number is measure of size of electronic shell, which is

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Q. Glow in discharge tube disappears when pressure is

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