HELP 10 points

2. In which of the six branches of chemistry would a scientist be working if
he or she were doing the following?

29.1-12=17.1the answer is this one

Noble gases is far right

Sorry i dont understand the question can you rephase it?

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.