Conceptual Physics

(Sean Pound) #1

Negative beta radiation


Nucleus emits negative beta particle
(electron)
Number of protons in nucleus increases
by 1

Nuclear mass is unchanged


·Transmutation


Positive beta radiation


Nucleus emits positive beta particle
(antielectron)
Number of protons in nucleus decreases
by 1

Nuclear mass is unchanged


·Transmutation


Radioactive decay with gamma


ray


Nucleus emits gamma ray (high-energy
photon)
·Becomes less excited
·No transmutation
·Nuclear mass is unchanged

(^712) Copyright 2007 Kinetic Books Co. Chapter 38

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