The element with the lowest melting point is Ga.
Hence, Option (C) is correct answer.
What is Melting point ?
Melting point is usually defined as the temperature at which solid changes to liquid.
What is the order of melting point of B, Al, Ga, Tl ?
The melting point order of B, Al, Ga, Tl is B > Al> Tl > Ga due to structural changes, melting point increases from Ga to Tl. Hence Ga has the lowest melting point among all these.
Thus from the above conclusion we can say that The element with the lowest melting point is Ga.
Hence, Option (C) is correct answer.
Learn more about the Melting Point here: https://brainly.com/question/40140
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