2 years ago

Which of the following is a noble gas? carbon dioxide, boron, oxygen, and helium

2 answers:

6 0

Helium is a nobel gas carbon dioxide is a compound boron I think is a metal oxgen is not a nobel gas I know the periodic table of elements like its the back of my hand I'm only14

sweet [91]2 years ago

4 0

Carbon dioxide is a noble gas.

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