For each trial, record the orbit number of each planet from the sun. be sure to indicate the number of planets in the habitable zone after each trial. create a different configuration of planets for each trial. an example has been supplied for you.

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?