Elements
| Chemical element | Chemical series | Electron configuration | ||
|---|---|---|---|---|
| 1 | H | Hydrogen | Nonmetal | 1s1 |
| 2 | He | Helium | Noble gas | 1s2 |
Read more about this topic: Period 1 Element
Elements
| Chemical element | Chemical series | Electron configuration | ||
|---|---|---|---|---|
| 1 | H | Hydrogen | Nonmetal | 1s1 |
| 2 | He | Helium | Noble gas | 1s2 |
Read more about this topic: Period 1 Element