Lord Bookwyrm

Very true. I haven't really been doing this kind of stuff for very long, so plz forgive me for any errors I make.

Since lerasium makes you able to use all the allomantic metals and atium can steal any power or attribute better than any other metal, since ettmetal is of harmony, I think its safe to assume that tapping/storing in ettmetal will make you a full feruchemist. Also, since it doesn't enter your body/pierce your blood stream, so it won't explode like it will if you use it for allomancy or hemalurgy.

harmonium's reactivity doesn't have anything to do with the it's chemical form. Rather, it's because it's of both Preservation and Ruin, so it's nature contradicts itself, which is why it's so reactive, rather than having anything to do with it chemically

Elend also swallowed a nugget of lerasium (then known as nuggets of pure allomancy). But most of the time, yes. You're right

So we have the base 16 allomantic (a) metals that are also used in feruchemy and hemalurgy (f and h). Following this, if any more a metals are found, then they will be used in f and h too. However, this can be reversed. If a=f=h, then if more h or f metals are found, they will be used in a as well. However, we also have the God metals and their alloys. Since there are 16 base metals, there will probably be another set of 16 per God metal. This means that, for lerasium, atium and harmonium, there is another set of 16. So, there must be 64 metals, plus their alloys. However, since lerasium makes you a Mistborn and atium can steal any power or attribute better than any other metal, harmonium will most probably be able to gift feruchemy to anyone who taps/stores it. So, in total, there must be 67 metals, used for a, f and h

Is the harmsway related to Gold in Feruchemy? Can liquid metals like mercury be alloyed with God metals to create new allomantic metals? If everyone is related (2nd Era Mistborn), then why isn't everyone an allomancer? I started reading Brandon Sanderson last month, and it was great (it still is)!