Input interpretation
s-block elements | price
Price rankings
1 | potassium | 2 | helium | €0.42 per troy ounce 3 | sodium | 4 | beryllium | €11.78 per troy ounce 5 | hydrogen | 6 | lithium | €0.10 per troy ounce 7 | calcium | €0.13 per troy ounce 8 | magnesium | €0.13 per troy ounce (July 1997, July 1998, July 2007, and July 2011 estimates)