Zusammenfassung der Ressource
Percentage Composition
- Percentage composition (or percentage
of the mass of something) shows how
much of an atom is in a compound.
- 1. Add all of the atomic
masses of each element
together. 2. Divide the
atomic mass of the
element by the overall
atomic mass. 3. times it by
100. 4. Put a % sign in front
of it.