Q. Atomic number of carbon is

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Q. Fluorine has electron affinity less than that of

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Q. Character of bonds which are formed between different elements are

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Q. Property of ionic radius is

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Q. covalent bond between two atoms is non-polar, when difference of electro negativity is

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Q. Electro negativity of oxygen atom is

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Q. In chemical bounding, which force has more magnitude of potential energy?

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Q. Covalent radius of carbon is

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Q. Stable noble gas which lies near to Mg is

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Q. When force of attraction decreases electron affinity

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Q. Difference in electro negativity values of bonded atoms is an index to polar nature of the

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Q. Valence electrons of Mg lies in

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Q. Variation of covalent radii in groups and periods is almost same as of

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Q. Ionization energies is influenced by atomic radius of

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Q. Amount of energy released during formation of KCl crystal lattice is

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Q. Elements of VII-A are good

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Q. force of attraction which held together oppositely charged K and Cl ions, is

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Q. When two Hydrogen atoms approach each other, forces of attraction and repulsion operate

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Q. Trend which is shown by ionization energy of group IIIA and VIA is

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Q. For stability of an isolated atom, ionization energy is

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