for each pair, circle the neutral element with the largest atomic radius... k or cs ti or as br or f
for each pair, circle the neutral element with the largest atomic radius... k or cs ti or as br or f
Answer
Explanation:
Step1: Recall atomic - radius trend
Atomic radius increases down a group and decreases across a period.
Step2: Compare K and Cs
K (potassium) and Cs (cesium) are in Group 1. Cs is below K in the group, so Cs has a larger atomic radius.
Step3: Compare Ti and As
Ti (titanium) and As (arsenic) are in the same period. As is further to the right in the period. Since atomic radius decreases across a period, Ti has a larger atomic radius.
Step4: Compare Br and F
Br (bromine) and F (fluorine) are in Group 17. Br is below F in the group, so Br has a larger atomic radius.
Answer:
Cs Ti Br