Final answer:
The maximum number of electrons that can be in each subshell can be determined using the equation "maximum number of electrons that can be in a subshell = 2(2l + 1)".
Step-by-step explanation:
Since n = 3, we know that I can be 0, 1, or 2; thus, there are three possible subshells. In standard notation, they are labeled the 3s, 3p, and 3d subshells. We have already seen that 2 electrons can be in an s state, and 6 in a p state, but let us use the equation "maximum number of electrons that can be in a subshell = 2(27 + 1)" to calculate the maximum number in each: