Final answer:
The minimum angular momentum quantum number (ℓ) for a subshell with 11 electrons is 3, which corresponds to the f-subshell. option d
Step-by-step explanation:
The minimum value of ℓ (angular momentum quantum number) for a subshell that contains 11 electrons must accommodate all those electrons. The possible subshells are s (maximum of 2 electrons), p (maximum of 6 electrons), and d (maximum of 10 electrons).
To have more than 10 electrons, we need to move to the next subshell, which is f. The ℓ value for s, p, d, and f subshells are 0, 1, 2, and 3, respectively. Since only the f-subshell can hold 11 or more electrons, the minimum value of ℓ for our case is 3. The correct answer is (d) 3.