Question

1. for each of the following pairs of elements choose the at with: a. higher first ionization energy li f b. larger atomic radius na o c. higher electronegativity li f

Explanation:

Step1: Recall periodic - trends

First ionization energy increases across a period and decreases down a group. Fluorine is more right - hand side in the periodic table than lithium, so F has higher first ionization energy. Atomic radius increases down a group and decreases across a period. Sodium is below lithium and to the left of oxygen, so Na has larger atomic radius. Electronegativity increases across a period and decreases down a group. Fluorine is the most electronegative element, so F has higher electronegativity than Li.

Answer:

a. F, b. Na, c. F