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Atoms and Molecules — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
Question
A particle P has 18 electrons, 20 neutrons and 19 protons. This particle must be:
  1. A molecule.
  2. A binary compound.
  3. An anion.
  4. A cation.
✓

Answer

  1. A cation.
Explanation:
Particle P must be a cation.

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