The permeability of packaging materials to CO2 is 6 times higher than the permeability to O2, which is 4 times higher than nitrogen. Despite its bigger molecular weight, carbon dioxide presents a much higher permeability, Why

Due higher critical temperature, condensability and gas solubility.

Explanation:

The permeability of packaging materials to CO2 is 6 times higher than the permeability to O2 and nitrogen because carbondioxide gas has higher condensability and higher gas solubility in membranes. Due to its higher condensability and solubility, carbondioxide gas is more permeable that other gases such as oxygen and nitrogen gases. Carbondioxide gas also have  higher critical temperature than other gases which make it more permeable than other gases.

the answer is 1 i believe

you need to have a picture of the atom that way we can answer it