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Byju's Answer
Standard XII
Chemistry
Ionic Radii and Ionisation Enthalpy (Group 2)
Lightest alka...
Question

Lightest alkaline earth metal is :

A
Be
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B
Mg
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C
Ca
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D
Sr
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Solution

The correct option is A Be
Beryllium (Be), is the lightest alkaline earth metal with atomic number 4 and mass number 9.

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