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Atoms and Molecules — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
MCQ
One of the following elements has an atomicity of ‘one’. This element is:
  • A
    Helium.
  • B
    Hydrogen.
  • C
    Sulphur.
  • D
    Ozone.
✓

Answer

  1. Helium.

Explanation:

The atomicity of Helium(He) is 1.

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