释义 |
- Periodic table groups
{{saved book |title=Periodic table periods |subtitle= |cover-image= |cover-color= }}Periodic table groups- Overview
Period - Periods
Period 1 element Period 2 element Period 3 element Period 4 element Period 5 element Period 6 element Period 7 element Period 8 element Period 9 element - Miscellany
Extended periodic table {{Wikipedia books on elements}} |