Concept explainers
(a)
Interpretation:
The half-life should be defined and described.
Concept Introduction:
The “half-life” is used to describe the decay of a radioactive material.
(b)
Interpretation:
The positron should be defined and described.
Concept Introduction:
There are other elementary particles besides electrons, protons and neutrons. A positron is another elementary particle.
(c)
Interpretation:
The background radiation should be defined and described.
Concept Introduction: Radiation does not only come from human-made sources, but it can also come from natural sources.
(d)
Interpretation:
The radioisotope should be defined and described
Concept Introduction:
There can be different versions of a different element in the nature these versions are called isotopes.
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