A practice problem had us decide which ion would fit through a membrane channel, based on size.
The ions of relevance were sodium and chloride, and I stated that chloride are smaller than sodium, based simply off of the trend of atomic radii. However, the answer was that sodium is smaller than chloride (which I understand based on more nucleons), and I don't understand if we should be looking at mass numbers or atomic radii...
The ions of relevance were sodium and chloride, and I stated that chloride are smaller than sodium, based simply off of the trend of atomic radii. However, the answer was that sodium is smaller than chloride (which I understand based on more nucleons), and I don't understand if we should be looking at mass numbers or atomic radii...