What is shown by Thomson's experiments of electric discharge through gases ? And explain the plum pudding model.
What is shown by Thomson's experiments of electric discharge through gases ? And explain the plum pudding model.
These experiments showed the atoms of various elements contain negatively charged constituents (electrons).
They are identical for all atoms.
All atoms are electrically neutral even though they have negatively charged constituents.
Therefore, an atom must also contain some positive charge to neutralise the negative charge of the electrons. To understand this, Thomson understood the atomic model called Plum Pudding Model of the atom.
According to this model, the positive charge of the atom is uniformly distributed throughout the volume of the atom.
In this model the negatively charged electrons are embended in it like seeds in a watermelon. This called plum pudding model of the atom.
Similar Questions
In a Rutherford scattering experiment when a projectile of charge $z_1$ and mass $M_1$ approaches a target nucleus of charge $z_2$ and mass $M_2$, the distance of closest approach is $r_0$ The energy of the projectile is
In a Rutherford scattering experiment when a projectile of charge $z_1$ and mass $M_1$ approaches a target nucleus of charge $z_2$ and mass $M_2$, the distance of closest approach is $r_0$ The energy of the projectile is
- [AIPMT 2009]
Explain Rutherford's explanation for scattered $\alpha $ -particles.
Explain Rutherford's explanation for scattered $\alpha $ -particles.
What radioactive source did the Geiger and Marsden use in the scattering experiment?
What radioactive source did the Geiger and Marsden use in the scattering experiment?
An alpha nucleus of energy $\frac{1}{2}mv^2$ bombards a heavy nuclear target of charge $Ze.$ Then the distance of closest approach for the alpha nucleus will be proportional to
An alpha nucleus of energy $\frac{1}{2}mv^2$ bombards a heavy nuclear target of charge $Ze.$ Then the distance of closest approach for the alpha nucleus will be proportional to
- [AIEEE 2006]
The number of completely filled shells for the element ${ }_{16} S ^{32}$ is
The number of completely filled shells for the element ${ }_{16} S ^{32}$ is
- [KVPY 2017]