Respuesta :
The answer would be D. This is because sulfur is on it's own, meaning one. while tri is a prefix for three so there are three oxygen atoms.
Answer: D. There is one atom of sulfur and three atoms of oxygen.
Explanation:
An atom is smallest unit of a matter or substance.It consist of three subatomic particles : electrons, protons, neutrons.
Element is a pure substance which is composed of atoms of similar elements. Example: Gold [tex]Au[/tex]
Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass. Example: water [tex]SO_3[/tex]
1 molecule of [tex]SO_3[/tex] is made up of one atom of sulfur and three oxygen atoms combined together in fixed ratio by mass.