Chemistry

Question Analysis
This question involves identifying the most electronegative element within the alkaline earth metal group (Group 2). The main focus is on applying the group trend of electronegativity to a specific family of elements.

Key Concept Explanation
Electronegativity decreases down a group in the periodic table. For Group 2 elements, this trend occurs because atomic radius increases with additional electron shells, weakening the nucleus's attraction for bonding electrons. The element at the top of the group has the smallest atomic radius and highest electronegativity.

Step-by-Step Solution
1. Identify the position of each Group 2 element: Be (Period 2), Mg (Period 3), Ca (Period 4), Ba (Period 6).
2. Apply ...