<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Skip Navigation

Chapter 22: The Nucleus

Difficulty Level: At Grade Created by: CK-12
Turn In

Particle trails of the first observed neutrino

This photograph is of the world’s first observation of a neutrino in a hydrogen bubble chamber. The event was produced in a synchronized cyclotron on November 13, 1970. The invisible neutrino followed the dashed yellow line and struck a proton at the point from which the three particle tracks originate. The neutrino then turned into a muon, whose path is traced by the long blue line. The short red track, labeled “p,” follows the proton. The orange track marks the path of a pi-meson created by the collision. In this chapter, you will learn about the basic structure of the atomic nucleus.

Chapter Outline

Chapter Summary

Atoms of the same element always have the same number of protons in their nuclei, but they may have differing numbers of electrons or neutrons. Radioactivity is the result of nuclear decay and the emission of subatomic particles. Quarks are the smallest particles known to date; they are the building blocks of the primary subatomic particles. Nuclear reactors can release vast quantities of energy by harnessing the interactions of atomic nuclei.

Image Attributions

Show Hide Details
Date Created:
Aug 02, 2016
Last Modified:
Aug 03, 2016
Save or share your relevant files like activites, homework and worksheet.
To add resources, you must be the owner of the FlexBook® textbook. Please Customize the FlexBook® textbook.
Please wait...
Please wait...
Image Detail
Sizes: Medium | Original