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First 20 Elements
First 20 Elements-The most used
Atomic # | Name/Symbol |
---|---|
1 | H - Hydrogen |
2 | He - Helium |
3 | Li - Lithium |
4 | Be - Beryllium |
5 | B - Boron |
6 | C - Carbon |
7 | N - Nitrogen |
8 | O - Oxygen |
9 | F - Fluorine |
10 | Ne - Neon |
11 | Na - Sodium |
12 | Mg - Magnesium |
13 | Al - Aluminum |
14 | Si - Silicon |
15 | P - Phosphorus |
16 | S - Sulfur |
17 | Cl - Chlorine |
18 | Ar - Argon |
19 | K - Potassium |
20 | Ca - Calcium |