With respect to electron affinity , arrange the following elements in order from least favorable to most favorable in terms of acquiring an additional electron. Barium, Fluorine, Sulfur

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Electron affinity generally increases across a period from left to right and decreases down a group. Barium, being an alkaline earth metal, has a low electron affinity as it is more favorable for it to lose electrons than to gain. Sulfur, being to the right of barium in the periodic table, has a higher electron affinity due to its desire to complete its valence shell. Fluorine has the highest electron affinity of all elements because it is very electronegative and eagerly gains electrons to complete its valence shell. Therefore, the correct order from least to most favorable in terms of acquiring an additional electron is Barium < Sulfur < Fluorine.

With Respect to Electron Affinity , Arrange the Following Elements