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How does the inter-particle forces help in characterising the properties of (a) potassium metal and (b) solid argon? |
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Answer» SOLUTION :(a) Potassium is a metallic solid. Atoms of potassium are held by metallic BONDS. Since the size of atom is more and number of valence electrons is less, the metallic bonds are weak. Hence it is a soft solid with low HEAT of vapourisation. It is a good ELECTRICAL conductor. (b) Solid argon is a molecular solid. Argon atoms are held by weak van der waal.s forces. It is soft solid with low melting point. It is not an electrical conductor, because of ABSENCE free electrons. |
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