I am having trouble answering a question and need some advise. If one proton is taken from a nucleus of a sample of Au79 i would get platinum 78 and if one was added i would get Mercury 80. I am trying to decide which one is the more valuable financially. Platinum I think is worth more than gold and has a range of uses. Then again so is mercury? Be grateful for any ideas.

Question

Mercury is very inexpensive. Platinum is not.

thank you, that's what i thought