Scandium
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| Sc | 21 |
| Scandium | |
Abundance: 20ppm
Scandium, periodic table Sc, is a metal. It has 21 protons and its most common isotope has 24 neutrons for an atomic mass of 45.
Scandium[1] is rare in the Earth and Martian crusts. Production on Earth is of the order of 20 tonnes per year, mostly as an agent to improve certain aluminum alloys for aerospace.
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References
- ↑ Wikipedia: https://en.wikipedia.org/wiki/Scandium
