Among the alkaline earth metals, the element forming predominantly covalent compound is:
A
Barium
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B
Beryllium
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C
Strontium
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D
Calcium
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Solution
The correct option is B Beryllium Beryllium predominantly forms covalent compound due to its small size (can't ionize easily). It has a smaller atomic radius and a large effective nuclear charge, it forms a covalent bond.
For example-Beryllium halides are covalent in nature.