Atomic Models
Atomic Models: Overview
This Topic covers sub-topics such as Mass of a Neutron, Alpha Particles, Discovery of Neutron, Rutherford's Model of an Atom, Structure of an Atom, Thomson's Model of an Atom, Discovery of Nucleus, Rutherford's Gold Foil Experiment and, Charge of Nucleus
Important Questions on Atomic Models
Describe J. J. Thomson's atomic model.
According to Rutherford's atomic model, where are the protons and electrons located in an atom?
If Rutherford's atomic model is correct, then the atom should collapse. Why?
ray scattering experiment proved that the positive particles are present in the extra nuclear part of an atom.
An α -particle is identical with Helium nucleus.
Why the structure of an atom was unknown for a long time?
State the conclusions of gold foil experiment that lead to the discovery of the nucleus.
Thomson's model explained the stability of an atom.
Rutherford observed from his experiment that all alpha particles deflected back.
Give one observation from the gold foil experiment.
Goldstein discovered the neutral sub-atomic particles.
The name of the scientist who discovered neutron is -
Give one conclusion from the Thomson's model of atom.
J.J.Thomson concluded that atom has a whole is electrically neutral.
Rutherford was the first one to propose a model for structure of atom.
The first simple model of structure of atom was proposed by _____.
Rutherford explained the stability of an atom.
