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At 298 K and 1 atm, which noble gas has the lowest density?(1) Ne (2) Kr(3) Xe

January 2019 NY Regents Chemistry Exam


8 At 298 K and 1 atm, which noble gas has the lowest density?

(1) Ne

(2) Kr (3) Xe

(4) Rn


Solution: Table S on the Reference Table shows the density for different elements.

Answer: 1


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