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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Q. Electro negativity of sodium atom is

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Q. After conversion of Na+ ion radius of Na atom reduces from

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Q. Electron has

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Q. bond formed by elements of widely different electro negativities is

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Q. Cationic radius decreases when effective nuclear charge on ion

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Q. In comparison of electronegativity values increase in a period with decrease in (structure O)

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Q. Amount of energy which is evolved in bind formation is

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Q. After loss an electron potassium attains configuration of

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Q. Electropositive elements are at a higher energy state then the

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