What is an accretion disk? a) any flattened disk in space, such as the disk of the milky way galaxy. b) a disk of hot gas swirling rapidly around a white dwarf, neutron star, or black hole. c) a stream of gas flowing from one star to its binary companion star. d) a disk of material found around every white dwarf in the milky way galaxy.

4. now look at the green lines you created by connecting the three boiling point data points and the three melting point data points. for each of these lines, describe any trends you see. 5. locate the elements on your periodic table that you circled in green on your graph. what term or description would you use to identify these elements with respect to the periodic table? 7. using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers.