Given that the heat of fusion of acetone is 23.5 cal/g, and the heat of vaporization is 129 cal/g, how many calories are needed to vaporize 41.9 g of acetone

Four statements about the development of the atomic model are shown below. a: electrons have wavelike properties. b: atoms have small, negatively charged particles. c. the center of an atom is a small, dense nucleus. d: atoms are hard, indivisible spheres. which order of statements represents the historical development of the atomic model? c-d-a-b c-d-b-a d— в-а — с d-b-c-a