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periodic table
Term | Definition |
---|---|
Hydrogen/ H | 1 |
Helium/ He | 2 |
Lithium/ Li | 3 |
Beryllium/ Be | 4 |
Boron/ B | 5 |
Carbon/ C | 6 |
Nitrogen/ N | 7 |
Oxygen/ O | 8 |
Fluorine/ F | 9 |
Neon/ Ne | 10 |
Sodium/ Na | 11 |
Magnesium/ Mg | 12 |
Aluminum/ Al | 13 |
Silicon/ Si | 14 |
Phosphorus/ P | 15 |
Sulfur/ S | 16 |
Chlorine/ Cl | 17 |
Argon/ Ar | 18 |
Bromine/ Br | 35 |
Iodine/ I | 53 |
Mercury/ Hg | 80 |
Calcium/ Ca | 20 |
Potassium/K | 19 |