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(a) (i) Write two properties of gold whi...

(a) (i) Write two properties of gold which make it the most suitable metal for ornaments. (ii) Name two metals which are which are the best conductors of heat. (iii) Name two metals which melt when you keep them on your palm. (b) Explain the formation of ionic compound CaO with electron-dot structure. Atomic numbers of calcium and oxygen are 20 and 8 respectively.

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