In his Nobel Prize address, Ernst Rutherford announced that he had experimental evidence that the alpha particle was really an electron. was an ionized hydrogen atom. was ionized helium atom. was an isotope of lithium.

In his Nobel Prize address, Ernst Rutherford announced that he had experimental evidence that the alpha particle was really an electron. was an ionized hydrogen atom. was ionized helium atom. was an isotope of lithium.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

Expert Solution

Explanation :

An alpha particle is a radioactive particle that has an atomic number of 2 and a mass number of 4.
These chemical properties are consistent with that of Helium (₂He⁴).
Thus, an alpha particle is an ionized Helium atom.

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