The atomic radius generally decreases across a period (horizontal row) from left to right on the periodic table. Therefore, to find an element with a larger atomic radius than phosphorus (P), we need to look for an element located to the left of phosphorus in the same period.
In the third period of the periodic table, phosphorus is located to the right of elements like sodium (Na), magnesium (Mg), and aluminum (Al). These elements have smaller atomic radii compared to phosphorus.
However, the element with a larger atomic radius than phosphorus in the same period is sulfur (S), which is located to the left of phosphorus. The atomic radius of sulfur is larger than that of phosphorus due to the increasing number of electrons and electron shells.
Therefore, sulfur (S) has a larger atomic radius than phosphorus (P) in the same period.