More rare stronger and better looking
gold is more expensive than iron simply because iron is more common and gold is also a purer metal
compared to a hundred years ago, no, as aluminum was more expensive than silver than.
No, gold is more expensive than silver as it is more rare
Yes.
they are more rare than other elements
Aluminum used to be more expensive than gold. In Napoleon's time the chemists hadn't discovered a good way to purify aluminum so pure aluminum was expensive and rare. Aluminum used to be a status symbol because it was more expensive and rarer than gold.
because they make most all of the alluminum used
Aluminum does not occur in nature as a solid metal. It is produced by man in several processes which require lots of energy. These processes were not invented until the 1880's. So, until then, aluminum was scarcer than gold and therefore more expensive.
Gold is much rarer (i.e. there is less of it and what there is is harder to find) than aluminum. There is also demand for gold due to special properties that it has that aluminum doesn't that increases the price. Gold is a much more attractive metal than aluminum. Gold does not corrode, while aluminum almost instantly corrodes on contact with air or water producing a hard transparent insulating coating on its surface.
Gold is tremendously more expensive than titanium.
Aluminium is more reactive than gold.
You are wrong. Copper is NOT more expensive than gold.
Aluminium is more expensive than steel
gold is more expensive than iron simply because iron is more common and gold is also a purer metal
compared to a hundred years ago, no, as aluminum was more expensive than silver than.
Pure yellow gold is more expensive than an alloy.
No, gold is more expensive than silver as it is more rare