19. Which of the following pairs does not share the same empirical formula? (2 points) O C2H6 and C4H12
O C3H6O3 and C2H4O2
O C2H6 and CH4
O CH2O and C3H6O3

It’s the 2nd one I hope this work

There is one s orbital, and there are three p orbitals, five d orbitals, and seven f orbitals. thus, the answer is b. do not confuse the number of orbitals in a subshell with the number of electrons the subshell can hold. each orbital can hold two electrons, so the capacity of an nf subshell is 14 electrons.