Elements comprise everything from the air we breathe to the precious metals we ... vital to life on Earth. Say hello to aluminum, the third-most abundant element in the crust.

While hydrogen is indeed the most abundant element in the ... making up around 30% of the Earth as a whole. However, it ...

However, unlike aluminum—which is among the most abundant metals in the earth’s crust—gallium is intensely scarce. The estimate used for gallium in the earth’s crust is around 16.9 ppm ...