NDA General Ability Question (2025) — Solution

Step-by-step solution

According to Rutherford's Nuclear Model of Atom, the positive charge and most of the mass of the atom are densely concentrated in an extremely small region called the nucleus. The nucleus is positively charged, not neutral. The other statements are correct postulates of Rutherford's model: Nearly all the mass of an atom resides in the nucleus. The electrons revolve around the nucleus in circular paths called orbits. The size of the nucleus is very small as compared to the size of the atom. Therefore, the statement that there is a neutral centre in an atom called nucleus is not observed in Rutherford's model. Answer: There is a neutral centre in an atom called nucleus