J.R. S. answered 10/30/20
Ph.D. University Professor with 10+ years Tutoring Experience
Looking at the specific heat values for the different metals, you can see that Pb has the lowest and Si has the highest. Since the mass of all are the same (20.0 g), and the ∆T (change in temperature) is also the same at 50º, the one that will absorb the least amount of heat would be Pb.