4 ms·
By "lowest elements" do you mean elements with lowest atomic number (Hydrogen, Helium, Lithium, etc.), or closest to the bottom of a chart hanging on a wall (Ru
by canadaduane 4y ago
By "lowest elements" do you mean elements with lowest atomic number (Hydrogen, Helium, Lithium, etc.), or closest to the bottom of a chart hanging on a wall (Rubinium, Strontium, Yttrium, etc.)?
- selimthegrim 4y agoIt would seem to be the latter, given the reference to heavy metals (they probably mean noble metals more likely)
- ncmncm 4y agoNo. They are contrasting the elements operated on, mostly light elements, with heavier ones used in catalysts that are also toxic, for reasons.