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Sindh MDCAT 2020 Chemistry #Atomic Structure #Charge-to-Mass Ratio

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Which positive ion has the lowest charge-to-mass (e/m) ratio? (Sindh MDCAT 2020)

Verified Answer & Explanation⌄

Correct Answer: D) Be²⁺

Concept Explanation

For the ions shown, e/m is smallest for Be²⁺ because 2/9 is less than 2/7, 2/4 and 1/1.

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