Q. Half of single bond length between two similar atoms covalently bond in a molecule', is referred to

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Q. Elements of I-A are good

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Q. In potassium chloride chlorine atom tends to gain electron form

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Q. Size of ionic radius of anion as compared to atomic radius of anion is

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Q. Size of ionic radius of cation as compared to atomic radius of cation is

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Q. Stable noble gas which lies near to Li is

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Q. In period from left to right electron affinity of elements

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Q. Covalent radius of chlorine is

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Q. In group of periodic table ionization energy is

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Q. Decreasing trend in a period is due to increase in the

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Q. atomic number of oxygen is

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Q. Chemical reactivities and chemical combinations depend upon

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Q. Force of attraction decreases due to increase of

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Q. Noble gas cannot react with

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Q. For gaining stability element, it tends to get configuration of

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Q. The Ionic radius of hydrogen in pm is

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Q. Tendency of an atom to attract a shared electron pair towards itself, is called its

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Q. In chemical combination of sodium hydride electron is gain by

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Q. Shapes of molecules are formed by

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Q. Insufficient gap between 1st and 2nd ionization energies show valence

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