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The s-block Elements — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThe s-block Elements1 Mark
MCQ
Which of the following forms only covalent bonds with other elements?
  • A
    Calcium
  • B
    Barium
  • C
    Radium
  • ✓
    Beryllium
✓

Answer

Correct option: D.
Beryllium
Beryllium's chemical behavior is largely a result of its small atomic and ionic radii. It thus has very high ionization potentials and strong polarization while bonded to other atoms, which is why all of itscompounds are covalent.
They form covalent bonds whereas the other members form of the group form ionic bonds.

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