Chemical element and Iodin

Chemical element noun - Any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter.

Iodin and chemical element are semantically related. In some cases you can replace term "Iodin" with "Chemical element", this terms are similar.

Iodin noun - A nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks).

Chemical element and iodin are semantically related. You can use "Chemical element" instead a noun "Iodin".