There are 17 rare earth elements (REEs) in all — 15 lanthanides plus yttrium and scandium. It's a fairly diverse group, with ...

One of the most abundant elements on Earth (the sixth in order of weight abundance), magnesium occurs naturally in crustal rocks, mainly in the form of insoluble carbonates, sulfates and silicates.

Atomic number 16, atomic weight 32.064. Silicon (Si): Silicon is the second most abundant element in the earth's crust and can be found in rocks, sand and clay. It acts as a deoxidizer in steel ...

How chemists interact with and ultimately use the elements on the periodic table is one of the ... as he explores the new chemistry enabled by catalysis with Earth abundant transition metals. Dr.