Peter explores the periodic table and how atoms can combine to form compounds. He uses beads with different sizes and colors as models. Each different type of bead represents atoms from a different element. How can Peter best use the beads to show how compounds form in nature?

In order to show how compounds form in nature, the beads will be assigned to the different elements on the periodic table according to the following arrangements;

1) The beads representing the elements of each group in the periodic table will all have the same color

2) The sizes of the beads within each group will increase from the top to the bottom of the group

With the above arrangements, it will be possible to show the affinity and proportion of the elements in the compound formed in nature

Explanation:

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

he would use the colour black