The number is a positive or negative number assigned to an atom according to a set of arbitrary rules.

What are the three major branches of natural science? • earth and space science, life science, physical science •earth and space science, physical science, chemistry •physical science, life science, chemistry •life science, chemistry, physics

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

Type the letter that represents the correct location for each particle type below.