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Metals and Non-Metals — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceMetals and Non-Metals1 Mark
MCQ
The noble gas having only two electrons in its valence shell is:
  • A
    $Ar$
  • B
    $Ne$
  • ✓
    $He$
  • D
    $Kr$
✓

Answer

Correct option: C.
$He$
Atomic number of helium is $2.$ It contains $2$ electrons in its atom.

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