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Atoms and Molecules — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
Question
Which of the following statement is wrong:
✓

Answer

  1. An atom and its ion have an unequal number of protons.
Explanation:
An atom and its ion have an equal number of protons.
Thus, for example, a chlorine atom and chloride ions have an equal number of protons. 
When the chlorine atom is converted into a chloride ion, there is no change in the composition of the nucleus. 
A chlorine atom has one electron less than a chloride ion.
Chlorine atom gains one electron to form chloride ion.

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