Q. Number f electrons in valence shell of noble gases is

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Q. atomic number of nitrogen is

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Q. When two atoms come close to each other due to attractive forces then potential energy of system is

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Q. When force of attraction decreases less energy is used in electron

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Q. Stable noble gas which lies near to S is

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Q. Energy involved in bond formation is

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Q. From left to right in a period, atomic radii

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Q. First ionization energy of K is

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Q. Ionization energy which is required to remove an electron after removal of first electron, is

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Q. Force of attraction in a crystal lattice which held positive and negative ion together is

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Q. Distance between potassium chloride is equal to sum of radii of two ions, it is determined by

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Q. Electro negativity of carbon atom is

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Q. Valence electrons are placed at a large distance from nucleus, when we make successive addition of

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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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