Are the gases present in the bubble in the same proportions as in the air

h let me think

indium, and thallium have three electrons i think

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

the answer would be b i believe