Skip to content
New summer mock series is live Attempt timed papers for SSC, banking, and engineering entrances with updated syllabi for this season. View exams

Question

Which pair of elements from different periods shows the least difference in electronegativity?

Options

Choose one · Correct answer highlighted

Explanation

Diagonal relationships minimize electronegativity differences. Be (1.5, period 2) and Al (1.5, period 3) have nearly identical values, unlike other pairs with larger gaps.