Periodic Table Chart Atomic Number 11 to 20 | Science Chemistry Chart | Classroom Decor | Digital Download | Free Printable
Free Printables Download Periodic Table Chart Atomic Number 11 to 20 PDF Chart for learning.
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| Periodic Table Elements (Atomic Number 11 to 20) | |||
|---|---|---|---|
| Elements | Atomic Number | Symbol | Discovered |
| Sodium | 11 | Na | 1807 |
| Magnesium | 12 | Mg | 1808 |
| Aluminum | 13 | Al | …… |
| Silicon | 14 | Si | 1854 |
| Phosphorus | 15 | P | 1669 |
| Sulfur | 16 | S | …… |
| Chlorine | 17 | Cl | 1774 |
| Argon | 18 | Ar | 1894 |
| Potassium | 19 | K | 1807 |
| Calcium | 20 | Ca | …… |