Correct option is D
The correct answer is (d) Stability of the atom.
· Rutherford's model of the atom proposed that atoms consist of a central, positively charged nucleus surrounded by electrons. However, the model did not explain the stability of the atom.
· According to classical physics, electrons moving in orbits around the nucleus should lose energy continuously and eventually spiral into the nucleus, causing the atom to collapse, which does not happen in reality.
Information Booster:
· Presence of nucleus: Rutherford's model introduced the concept of a dense, central nucleus in the atom.
· Charge of the atom: The model established that the nucleus is positively charged, and electrons are negatively charged, making the atom neutral overall.
· Presence of electrons: Rutherford’s model identified electrons orbiting the nucleus but did not explain why they do not collapse into the nucleus.