Make a prediction that describes the relationship between the composition of an unknown substance and its emission spectrum. for example, “if each element can be identified by its then the of an unknown star can be determined."

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

elements make up everything, and they combine to make compounds.

the answer is c

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.