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Chapter 00016

Atomic Energy

What is Radioactivity? It is the process by which an unstable nucleus gives off nuclear radiation.
What is Mass Number? It is the sum of the numbers of protons and nuetrons in the nucleus of an atom.
What is Isotope? It is an atom that has the same number of protons, as other atoms of the same element do but that has a different number of nuetrons.
What is Half-life? It is the time needed for half of a sample of a radioactive substance to undergo radioactive decay.
What is Alpha Decay? This is an alpha particle.
What is Alpha Particle? It is made up of two protons and two nuetrons.
What is Beta Decay? This is a beta particle.
What is Beta Particle? This can be an electron or positron.
What is Gamma Decay? This is the release of gamma rays from a nucleus.
What is Gamma Ray? This is the form of light that has very high energy.
Created by: vsumrell