Q. Distance at which attractive forces of hydrogen overcome repulsive forces is

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Q. Unit of electro negativity is

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Q. Ionization energies is influenced by nature of

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Q. First ionization energy of carbon is

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Q. Value of radii of cation and anion is

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Q. When atomic radius increases electron affinity

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Q. Electro negativity of fluorine atom is more then

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Q. From left to right in a period of periodic table proton number

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Q. Ionic radius of Cl- ion increases from

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Q. Those elements which have intermediate values of ionization energies are mostly

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Q. Sign given to electron affinity is

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Q. A similar type of bond is expected between elements of group

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Q. Electro negativity of potassium atom is

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Q. Atom which donates major share of its electrons in formation of HF is

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Q. Positive charge holds electrons more tightly thus removal of electrons become more

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Q. In fluorine, incoming electrons are repel by the

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Q. Shielding effect is responsible for decrease in force of attraction of nucleus for electrons present in the

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Q. From left to right in a period, shielding effect remains

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Q. Electro negativity values of elements is calculated by

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Q. Probability distribution of electrons can be affected by

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