for each pair, circle the neutral element with the highest electronegativity... sr or ra bi or p cl or al

for each pair, circle the neutral element with the highest electronegativity... sr or ra bi or p cl or al
Answer
Explanation:
Step1: Recall electronegativity trend
Electronegativity increases across a period and decreases down a group in the periodic table.
Step2: Compare Sr and Ra
Sr (strontium) and Ra (radium) are in the same group (Group 2). Since electronegativity decreases down a group, Sr has a higher electronegativity than Ra.
Step3: Compare Bi and P
Bi (bismuth) and P (phosphorus) are in the same group (Group 15). As electronegativity decreases down a group, P has a higher electronegativity than Bi.
Step4: Compare Cl and Al
Cl (chlorine) and Al (aluminum) are in the same period (Period 3). Since electronegativity increases across a period, Cl has a higher electronegativity than Al.
Answer:
Sr, P, Cl