Which of the following is most reactive(1) Sodium(2) Potassium(3) Calcium(4) Magnesium​

Answers (1)

Potassium is more reactive than other elements as potassium is larger than other elements thus potassium's valence electron is at a greater distance from the attractive nucleus and is so removed more easily than other elements valence electron. As it is removed more easily, it requires less energy, and thus it is more reactive.

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