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Structure of the Atom — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
Question
The particle not present in an ordinary hydrogen atom is:
  1. Proton.
  2. Neutron.
  3. Nucleus.
  4. Electron.
✓

Answer

  1. Neutron.

Explanation:

A hydrogen atom 11HH11 has 1 proton and 1 electron, but it does not have any neutron.

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