CBSE BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
Question
The fundamental particle not present in hydrogen is ________.
✓
Answer
The fundamental particle not present in hydrogen is Neutrons. Explanation: In nucleus of an atom, protons and neutrons are present. But in hydrogen atom, neutrons are not present, only 1 proton is present.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.