Very reactant elements found in the lanthanide series (monazite, xenotime); some are relatively abundant in the Earth’s crust
rare earth = elements which do not occur naturally in their pure form, instead, they are part of minerals in the silicate, oxide, carbonate.
alloyed = metal mixed
flint alloy = misch metal = a synthetic material used in lighters to create sparks
semiconductor = a material which has a conductivity between conductors (generally metals) and nonconductors or insulators (such as most ceramics)
cracking = the process of breaking down large hydrocarbon molecules into smaller, more useful ones by applying high temperatures and pressure, or using a catalyst
hydrogenation = a chemical reaction where molecular hydrogen (H) is added to a compound
catalyst = something that makes a chemical reaction happen more quickly
See also
Chemical Elements | Part 1
Chemical Elements | Part 2
Chemical Elements | Part 3
Chemical Elements | Part 4
Chemical Elements | Part 5
Chemical Elements | Part 6
