Periodic table
Pick a grade to lay its composition over the table. More materials follow as their compositions are sourced.
No gradeS355A572 Grade 50350WGrade 350E350Q235BE250300WA992A500 Grade CS350GDA653 SS Grade 50 Class 1
57–71
89–103
- Alkali metals
- Alkaline earth metals
- Transition metals
- Post-transition metals
- Metalloids
- Nonmetals
- Halogens
- Noble gases
- Lanthanides
- Actinides
Atomic weights are abridged standard values; bracketed numbers are the mass number of the most stable isotope. Composition limits come from the grade pages, where each limit has its sources.