| Element Name | : Oxygen |  |
| Symbol | : O |
| Presence in: |
| 1. 70 kg Person | : 43 kg |
| 2. Body | : 65 % |
| 3. Earth Crust | : 46 % |
| 4. Earth Ocean | : 86 % |
| 5. Universe | : 1 % |
| Properties: |
| 1. Atomic Number | : 8 |
| 2. Atomic Weight | : 15.9994 |
| 3. Group | : 16 |
| 4. Period | : 2 |
| 5. Block | : p |
| 6. Density | : 1.429 g/l |
| 7. Melting Point | : 54.36 K |
| 8. Boiling Point | : 90.20 K |
| 9. Electron Form | : 1s2 2s2 2p4 |
| 10. State of matter | : Gas |
| 11. Color | : A colorless, odorless, tasteless gas |
| Other Facts: |
| 1. Area of Presence in Body | : In All Liquids, Tissues, Bones, Proteins |
| 2. Existence in type of Foods | : Water |
| 3. Diseases | : Lung damage |
| 4. Health Uses | : Produce heat and energy |
| 5. Adult consumption / day | : Nil |
| 6. Children consumption / day | : Nil |
| 7. Natural Form | : Oxygen |
| 8. Other Forms | : Nil |
| 9. Source Place | : Water, lime and soda |
| 10. Common Uses | : Oxygen is important for human respiration. It is also used to kill bacteria that causes gangrene. |
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