Final answer:
Carbon (C) has larger atoms than fluorine (F) when comparing these two elements on the periodic table, as it's located to the left and atomic size decreases from left to right within the same period.
Step-by-step explanation:
The question is asking to choose the element with the larger atoms between carbon (C) and fluorine (F). Within the same period on the periodic table, the size of the atoms generally decreases as you move from left to right. This is because the additional protons in the nucleus of the atoms further to the right create a higher effective nuclear charge, which draws the electrons closer to the nucleus.
Carbon (C) is located to the left of fluorine (F) in period 2 of the periodic table. Since both elements are in the same period, but carbon is farther to the left, carbon will have the larger atomic size compared to fluorine. Therefore, the correct answer is carbon (C).
It should be noted that electron affinity (EA) tends to increase across a period, indicating that fluorine would have a higher electron affinity than carbon, but that's a different property than atomic size.