Which of the following is the most electropositive element? (2021)

Which of the following is the most electropositive element? (2021)

Step 1: Understand what electropositivity means. Electropositivity is the ability of an element to donate electrons and form positive ions.
Step 2: Know that elements in the periodic table are arranged in order of their electropositivity. Generally, alkali metals are the most electropositive.
Step 3: Identify the alkali metals. The alkali metals include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).
Step 4: Compare the alkali metals. As you move down the group in the periodic table, the electropositivity increases.
Step 5: Determine which alkali metal is the most electropositive. Rubidium (Rb) is lower in the group than lithium, sodium, potassium, and is more electropositive than cesium and francium.
Step 6: Conclude that rubidium (Rb) is the most electropositive element among the given options.

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