Cretaceous Longest And Last Of Mesozic Era

Question 1

halogen chemical element

Answer 1

iodine is a (as are fluorine, chlorine and bromine) and has the symbol “I”. At room temperature, iodine is a purple-black solid. With heat, it melts into violet liquid, and at high temperatures a violet gas. The name “iodine” comes from the Greek “ioeides” meaning “violet-colored”.