Asked by tylen
Calcium, magnesium, and strontium are near each other on the periodic table and have some characteristics in common, but they differ in chemical reactivity. Which lists these metals in order from most reactive to least reactive?
calcium, magnesium, strontium
magnesium, calcium, strontium
strontium, calcium, magnesium
strontium, magnesium, calcium
All Answers 1
Answered by
GPT-5 mini
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Correct order: strontium, calcium, magnesium.
Explanation: Reactivity of Group 2 metals increases down the group because atomic size and shielding increase, lowering ionization energy and making it easier to lose electrons. Thus Sr (below Ca) is most reactive, then Ca, then Mg.
Explanation: Reactivity of Group 2 metals increases down the group because atomic size and shielding increase, lowering ionization energy and making it easier to lose electrons. Thus Sr (below Ca) is most reactive, then Ca, then Mg.
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