Scientific Consensus is primarily a position, judgment, or a opinion of scientist in a particular area of there studies. So more or less like a opinion of the matter, its like saying, I don't agree with your study, and I think it should have been done another way.
The volume at STP is 22.4 dm^3, you dont need to ccalculate
The answer is ....... none of the above. The reactivity of an element is based on its valence electrons
All the planets is the answer