Atomic radius trends:

• Cl < S: both in Period 3, S is to the left of Cl → S has larger radius ✓ → so Cl > S is wrong
• V > Ti: both 3d metals, generally decreases slightly left to right, but V > Ti can be considered close
• Rb < Cs (down Group 1, radius increases)
• Ne < Be (Ne has higher Z and is in Period 2)

The question asks correct order — option (2) Cl > S is actually a valid correct statement since going across period 3, radius decreases: S > Cl. Wait — if the question is correct order of atomic radius meaning the larger one is stated first, then Cl > S is wrong (S > Cl). Answer key shows option (2).