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First 20elements(AM)
Atomic mass of the first 20 elements
Question | Answer |
---|---|
Hydrogen | 1.01 |
Helium | 4.00 |
Lithium | 6.94 |
Beryllium | 9.01 |
Boron | 10.81 |
Carbon | 12.01 |
Nitrogen | 14.01 |
Oxygen | 16.00 |
Flourine | 19.00 |
Neon | 20.18 |
Sodium | 22.99 |
Magnesium | 24.31 |
Aluminum | 26.98 |
Silicon | 28.09 |
Phosphorus | 30.97 |
Sulfur | 32.07 |
Chlorine | 35.45 |
Argon | 39.95 |
Potassium | 39.10 |
Calcium | 40.08 |