Nuclei · Nuclear structure
An atom is bombarded by shower of fundamental particles and in 10 s this atom absorbed 10 electrons, 10 protons and 9 neutrons. The percentage growth in the surface area of the nucleons is recorded by :
- (1)250%
- (2)150%
- (3)225%
- (4)900%
Flawed question. The mass number of is not printed, and with the evident the surface area grows by 125%, which is not an option (the key 225% is the final area as a percentage of the initial); Allen gives the question as BONUS. It is shown for completeness and is left out of practice tests.
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