Question

which element will form the ion with the largest ionic radius? be b li

Explanation:

Step1: Analyze ion formation

• Li forms \(Li^+\) (loses 1 electron).
• Be forms \(Be^{2 +}\) (loses 2 electrons).
• B forms \(B^{3+}\) (loses 3 electrons).

Step2: Apply ionic radius trend

• For isoelectronic ions (same number of electrons), the ion with the least positive charge has the largest ionic radius.
• \(Li^+\), \(Be^{2+}\), and \(B^{3+}\) are isoelectronic (with the electron configuration of He).
• As the positive charge increases (\(Li^+

Answer:

Li