Congratulations, you have copy and pasted a heap of information from a website to try and prove you know what you're saying.
Anyway, no, you're idea is useless.
I'm going to start locking element suggestions that just come right off the periodic table. This is falling sand, we have the flexibility to do pretty much anything imaginable. It's pointless to dump in elements that already exist unless you do something out of the ordinary with them.
Zinc has a low melting point, so could it be used to make electrical fuses?
Actually, rubidium is good for that.