Key
| 1 1.00794 H Hydrogen |
shows | [atomic number] [atomic weight] [atomic symbol] [atomic name] |
| The green numbers across the top of the table indicate group numbers. | The green numbers down the side of the table indicate period numbers. |
| Br Element is a liquid at room temperature |
Tc Element is radioactive [Most have weight parenthesized: see following notes] |
| The period of elements from 58 to 71 is the Lanthanide series, as it follows the element Lanthanum. | The period of elements from 90 to 103 is the Actinide series, following Actinium in the main body of the table. |
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