The electronegativity of an element increases from left to right across a period and decreases from top to bottom within a group on the periodic table.
Therefore, the ranking of the elements from highest to lowest electronegativity is:
1. Rb (Rubidium)
2. Na (Sodium)
3. Li (Lithium)
Rank these elements from highest to lowest electronegativity
Li, Na, Rb
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