Browse Fact Box about Science - Chemistry
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Facts
| Fact | Category | Date |
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| 1 | An oxygen atom has 6 valence electrons. | Science > Chemistry | 05/19/08 | |
| 2 | Lithium has 1 valence electron(s). | Science > Chemistry | 05/19/08 | |
| 3 | Sodium has 1 valence electron. | Science > Chemistry | 05/19/08 | |
| 4 | Hydrogen has 1 valence electron(s). | Science > Chemistry | 05/20/08 | |
| 5 | Beryllium has 2 valence electrons. | Science > Chemistry | 05/20/08 | |
| 6 | Carbon has 4 valence electrons. | Science > Chemistry | 05/20/08 | |
| 7 | Boron has 3 valence electrons. | Science > Chemistry | 05/20/08 | |
| 8 | Nitrogen has 5 valence electrons. | Science > Chemistry | 05/20/08 | |
| 9 | The atomic mass of hydrogen is 1.0079. | Science > Chemistry | 05/21/08 | |
| 10 | Joseph Priestly is most commonly credited for the discovery of the element oxygen. | Science > Chemistry | 05/26/08 | |
| 11 | O is the symbol for the chemical element oxygen. | Science > Chemistry | 06/02/08 | |
| 12 | The symbol for the chemical element iron is Fe. | Science > Chemistry | 06/02/08 | |
| 13 | The symbol for the chemical element calcium is Ca. | Science > Chemistry | 06/03/08 | |
| 14 | Ni is the symbol for the chemical element nickel. | Science > Chemistry | 06/03/08 | |
| 15 | The symbol for the chemical element chromium is Cr. | Science > Chemistry | 06/03/08 |
