Carbon
Carbon is used in Charcoal
The element that is bluish black in color is iodine. It is a lustrous, shiny solid with a metallic appearance and a bluish black hue. It is commonly used in medicine and photography.
iodine is element 53
solid 92 element type can be used for aluminium alloys......
Lithium is a metal that is solid at room temperature, while iodine is a halogen element that is a purple-black solid but sublimes into a purple gas when heated. Lithium is commonly used in batteries and certain medications, while iodine is used in antiseptics and as a dietary supplement.
It can be turned into a gas, but it is a black rock in natural forn. It could also become a brown powder used for gunpowder.
sulfur
sulfur
The phrase "in the black" means that your accounts are solid and making money. If you are "out of the black," it means that you are no longer financially solid - however, the phrase most often used as the opposite of "in the black" is not "out of the black" but "in the red."
Sulfur
Chlorine.
bromine is a famous element that was used as poisonus gas also arsenic was used it is a more famous one that was more commonly used
i am pretty sure they use concrete