1. Refer to the chart below on physical properties of matter. Answer the questions and relate the intermolecular forces present among the species to explain the different properties exhibited by the substances. Melting and Boiling Points Molar Mass, g/mol Substance Melting Point, K Boiling Point, K Fluorine (F2) 38 53 85 Bromine (Br2) 160 266 332 Astatine (At2) 420 575 610 a. Which substance has the highest melting and boiling points? b. What intermolecular forces of interactions are present in each of the substances? c. How do the intermolecular forces present relate to the size of the substance?

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