When atoms are bombarded with alpha particles,only a few in a million suffer deflection,while others pass through undeflected. This is because:

  • A
    The force of repulsion on the moving alpha particle is small.
  • B
    The force of attraction on the alpha particle to the oppositely charged electrons is very small.
  • C
    There is only one nucleus and a large number of electrons.
  • D
    The nucleus occupies a much smaller volume compared to the volume of the atom.

Explore More

Similar Questions

The figure that is not a direct manifestation of the quantum nature of atoms is:

The energy required to excite an electron in a $H$ atom from the first orbit to the second orbit is ......

Difficult
View Solution

The energy required to excite an electron in a hydrogen atom from the ground state $(n=1)$ to the first excited state $(n=2)$ is $..........$ $eV$.

The nuclear theory of the atom was put forward by:

According to Bohr's model,the energy of an electron is given by $E = -\frac{2.176 \times 10^{-18}}{n^2} \, J \, atom^{-1}$. Calculate the minimum energy required to remove an electron from the $3^{rd}$ orbit of a $He^{+}$ ion,and also calculate the corresponding wavelength of the photon.

Difficult
View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo