Chemical element and He

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.

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

He noun - A very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas).

Chemical element and he are semantically related. Sometimes you can use "Chemical element" instead a noun "He".