Which one is expensive, Potassium solid or gold solid? Why?

Question

Chemistry

Answer 1

Gold is more expenive because of it's rarity and the difficulty to extract it from ore.  Potassium is relatively common.

If you would like to trade me your gold for potassium, please contact me. 8-)

Grandpa

Answer 2

Gold is probably more expensive. This is due not only to the cost of manufacturing but also to economical reasons (gold can be stored for a long time without losing its value, so buying gold is considered a good investment)