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Question
Which of the following is the CORRECT order for alkaline earth metals?
Options
Be < Mg < Ca < Ba < Sr (Atomic radii)
Be < Mg < Ca < Sr < Ba (First ionization enthalpy)
Ca < Mg < Be < Sr < Ba (Density)
Be < Mg < Ca < Sr < Ba (Second ionization enthalpy)
MCQ
Solution
Ca < Mg < Be < Sr < Ba (Density)
Explanation:
The density of alkaline earth metals exhibits an erratic pattern: Ca < Mg < Be < Sr < Ba
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Alkali Metals and Alkaline Earth Metals
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