Final answer:
The element with the electron configuration of 1s₂ 2s₂ 2p₆ 3s₂ 3p₁ is aluminum (Al), which matches the given configuration and has 13 electrons.
Step-by-step explanation:
The student's question deals with identifying the element with the given electron configuration: 1s₂ 2s₂ 2p₆ 3s₂ 3p₁. This configuration can be matched to the respective elements in choice a. F, b. Al, c. Mg, and d. Ga. Based on the information presented, aluminum (Al) has 13 electrons with the configuration [Ne]3s² 3p¹, which matches the given configuration. Therefore, element Al has an electron configuration of 1s₂ 2s₂ 2p₆ 3s₂ 3p₁.