answersLogoWhite

0

This combination of symbols does not occur on the periodic table, which is a list of individual elements. Of course the separate symbols do occur.

S is sulfur

I is iodine

O is oxygen.

It's a rather random collection of elements, so I wonder if you might mean SiO2 (where the 2 should be a subscript) which is the formula for the compound silicon dioxide, a major constituent of sand. As a compound this does not appear on the Periodic Table.

User Avatar

Wiki User

10y ago

What else can I help you with?