Gold resists attacks by individual acids, but it can be dissolved by the aqua regia, so named because it dissolves gold. Gold also dissolves in alkaline solutions of cyanide, which have been used in mining. Gold dissolves in mercury, forming amalgam alloys. Gold is insoluble in nitric acid, which dissolves silver and base metals, a property that has long been used to confirm the presence of gold in items. Silver a soft, white, lustrous transition metal, it has the highest electrical conductivity of any element and the highest thermal conductivity of any metal. The metal occurs naturally in its pure, free form (native silver), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc refining. Its good or is bad this element in the powder toy? Are good for electronics, for solid, for sand. Comment
@reyoni(View Post) no problem, sorry for having a go at you like that, if you go int the wiki, there is a tab that'll show all the previously suggested/rejected elements, so yeah, its always nice to make sure that you are not suggesting an element that has already been mentioned. And right now, as said by Simon* him self, we are currently not looking for any new elements.
when the element suggestions forum is reopened, I'm sure you'll have fun suggesting the most wild and exotic Ideas your mind can process XD