When sodium and fluorine combine to produce the compound NaF, the ions formed have the same electron configuration as atoms of argon, only

2.

neon, only

3

both argon and neon

neither argon nor neon

Equal numbers of moles of he(g), ar(g), and ne(g) are placed in a glass vessel at room temperature. if the vessel has a pinhole-sized leak, which of the following will be true regarding the relative values of the partial pressures of the gases remaining in the vessel after some of the gas mixture has effused?