11Bismuth
Bismuth has a half-life a billion times longer than the age of the universe.
12Magnesium
Magnesium can be very effective against anxiety. Many people are quite deficient in it and a good supplement can be as effective as meds but with positive side effects.
13Iron fish
Lucky-fish-shaped lumps of iron are reducing cases of Anemia in Cambodian communities suffering from poor diet.
14Calcium
It has been proven that calcium is not as good for your bones as Vitamin K. Contrary to popular belief, milk is not the best thing for your bones. Avocado, peaches, and bananas are much better.
15Gallium
There is a metal called gallium that melts at 85.5°F or 29.7°C, so you can melt it by holding it in your hand.
16Uranium
More uranium is released by coal-fired power plants in one week than what has been released by all nuclear power plants combined (including Chernobyl/other accidents) over the past 50 years.
17Cobalt
The element 'Cobalt' gets its name from the German 'kobold' which means 'goblin'. Miners found cobalt veins near their silver, and blamed this strange and dangerous metal on goblins, and thus named it after them.
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18Gold
Gold is yellow, unlike its grey neighbors on the periodic table, due to Einstein's special relativity. Its electrons are moving so fast, some over half the speed of light, that they have a relativistic contraction, shifting the wavelength of light absorbed to blue and thus reflecting a golden glow.
19Mercury
Mercury in vaccines is not only not harmful but is in fact there to make the vaccine safer by preventing the growth of bacteria or fungi that could possibly contaminate the vaccine.
20Cobalt
Until 1735 no new metals had been discovered since prehistoric times; iron, copper, silver, gold, zinc, mercury, tin, lead and bismuth. When Georg Brandt recognized a tenth, Cobalt, he became the first ever known person to discover a metal. For thousands of years, cobalt was mistaken for bismuth.
