Explain Rutherford's atomic model experiment

Rutherford had a sheet of gold foil just a few atoms thick, and surrounded it with detectors. He then fired alpha particles at the gold sheet, knowing that these were positively charged. Some of these were deflected from their paths, a very small number were reflected, but most passed straight through the foil. This told Rutherford that most of the atom must be empty space. He explained the deflections and reflections with a concentration of charge in the middle of the space of each atom. As so few were reflected and deflected compared to those that went straight through, the charge must be tiny compared to the atom. As it was repelling the positive alpha particles, it must also be positive. This was the nucleus.

HM
Answered by Harry M. Physics tutor

5934 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

What would happen to n and Emax when  a) the intensity is reduced to 1/2 I but the wavelength λ is unchanged? b) the wavelength λ is reduced but the intensity is unchanged?


Imagine a ball rolls off a set of stairs with horizontal velocity, u; the stairs have a height, h and length of l. Find a formula for which step the ball will hit, n.


Describe the photoelectric effect.


An ideal gas within a closed system undergoes an isothermal expansion from an initial volume of 1m^3 to 2m^3. Given that the initial pressure of the gas is 10^5 Pa, find the final pressure of the gas following the expansion.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning