38) SEP Develop a Model Imagine you have a box and a set of red and green balls. The red balls represent solute particles, and the green balls represent solvent
particles. Sketch a model showing how the number of red balls doesn't change as
more green balls are added. Use your model to show how the percent by count of
red balls to total balls decreases.

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

Chemical engineering who specializes in negotiating for large purchases and instructing customers in use of the products are

The diagin dilutepage 6 of 12a6a5(a)fluorine, chlorine, bromine and iodine are placed in the same group of theperiodic table. state the common name used to describe elements in this group.(i)state the group in which the elements are placed and explain whythey are placed in that group.(ii)which of the above named elements is a solid at roomtemperature and pressure?