| Sort By: | Atomic Number | Symbol | Name |
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| Filter Sort By Atomic Number: | Solids | Gases | Liquids | Radioactive | Man-made | All |
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| Groups (sorted by Atomic Number): | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | *Lathanides | *Actinides | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| Period (sorted by Atomic Number): | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period 1 | Period 2 | Period 3 | Period 4 | Period 5 | Period 6 | Period 7 | |||||||||||||
| Atomic Number | Symbol | Name | Atomic Weight | State @ STP | Electron Config | Web Info | Basic Data |
|---|---|---|---|---|---|---|---|
| 9 | F | Fluorine | 18.998 | gas | 1s2 2s2 p5 | Fluorine | Fluorine |
| 17 | Cl | Chlorine | 35.453 | gas | [Ne] 3s2 p5 | Chlorine | Chlorine |
| 35 | Br | Bromine | 79.904 | liquid | [Ar] 3d10 4s2 p5 | Bromine | Bromine |
| 53 | I | Iodine | 126.905 | solid | [Kr] 4d10 5s2 p5 | Iodine | Iodine |
| 85 | At | Astatine | 210.000 | solid | [Xe] 4f14 5d10 6s2 p5 | Astatine | Astatine |
| 117 | Ts | Tennesine | 294.000 | solid | [Rn] 5f14 6d10 7s2 7p5 | Tennesine | Tennesine |
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