AP Chemistry
1.7 Periodic Trends
The atomic numbers and experimental atomic radii of selected Period 2 elements are provided in the table below.
Which of the following statements best explains why an atom of \(\text{F}\) has a smaller atomic radius than an atom of \(\text{Li}\)?
| Element | Atomic number (\(Z\)) | Valence shell | Atomic radius (\(\text{pm}\)) |
|---|---|---|---|
| \(\text{Li}\) | \(3\) | \(n = 2\) | \(152\) |
| \(\text{N}\) | \(7\) | \(n = 2\) | \(75\) |
| \(\text{F}\) | \(9\) | \(n = 2\) | \(71\) |
Which of the following statements best explains why an atom of \(\text{F}\) has a smaller atomic radius than an atom of \(\text{Li}\)?
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