Q. 4

a) Who discovered the nuclear model of the atom?
b) Explain how Rutherford's atomic structure cannot explain the stability of atom?

Answer :

a) Rutherford was the first scientist to give the nuclear model of the atom. His descriptions that nucleus is present at the centre of the atom is unquestionable even today.
b) But Rutherford's description that electrons move is different circular orbits, round the nucleus is not correct, as such, motion leads to the instability of the atom. This is because an electron moving in a circular orbit should accelerate. Further an electron, possessing a negative charge, when accelerated, should radiate energy and thus a moving electron goes on losing its energy and hence it is gradually attracted by the nucleus, consequently it falls into it, leading to instability.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Smart Revision | Rutherford's ExperimentSmart Revision | Rutherford's ExperimentSmart Revision | Rutherford's Experiment43 mins
Electronic ConfigurationElectronic ConfigurationElectronic Configuration34 mins
Atomic NumberAtomic NumberAtomic Number46 mins
Quiz | Bohr's-Bury Rule and ValencyQuiz | Bohr's-Bury Rule and ValencyQuiz | Bohr's-Bury Rule and Valency62 mins
How Radioactivity Works?How Radioactivity Works?How Radioactivity Works?29 mins
ValencyValencyValency31 mins
Smart Revision | Imp. Terms to RememberSmart Revision | Imp. Terms to RememberSmart Revision | Imp. Terms to Remember55 mins
Smart Revision | Let's Revise An AtomSmart Revision | Let's Revise An AtomSmart Revision | Let's Revise An Atom34 mins
Know The Discovery of a NucleusKnow The Discovery of a NucleusKnow The Discovery of a Nucleus22 mins
Champ Quiz | On Atom & its StructureChamp Quiz | On Atom & its StructureChamp Quiz | On Atom & its Structure37 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses