the type of energy transferred by a wave in a medium is kinetic energy is true
The one with the largest atomic radius is barium
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It is a true fact that ionic crystals are excellent insulators and can hold a large amount of heat before melting or boiling. The correct option among the two options that are given in the question is the first option. Salt is a great example of ionic crystals and we know that it takes a huge amount of time to melt or boil.
The answer is B the highest point
