English: The maximum momentum transfer to deflect the alpha particle occurs with 90 degree scattering of the electron. Not to scale. The angle in practice is 0.02 degrees, too small to visible on this size image. See Beiser (1969). Perspectives of Modern Physics, p. 109
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse
Captions
Alpha particle momentum change due to 90 degree collision with atomic electron, after Beiser, 1969.